From b224e600022c3a50370f0925ceafd9659e656c40 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 12 Nov 2025 11:45:22 +0000
Subject: [PATCH 1/4] Initial plan


From 5e5a0aacba449c554ac2943b6cfdf1c9e8f96198 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 12 Nov 2025 11:56:09 +0000
Subject: [PATCH 2/4] Fix fetch client to intercept AbortError and network
 exceptions

Co-authored-by: mrlubos <12529395+mrlubos@users.noreply.github.com>
---
 .../client-fetch/__tests__/client.test.ts     | 105 ++++++++++++++++++
 .../@hey-api/client-fetch/bundle/client.ts    |  35 +++++-
 2 files changed, 139 insertions(+), 1 deletion(-)

diff --git a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/__tests__/client.test.ts b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/__tests__/client.test.ts
index 8569963900..dd873afffa 100644
--- a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/__tests__/client.test.ts
+++ b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/__tests__/client.test.ts
@@ -406,3 +406,108 @@ describe('request interceptor', () => {
     },
   );
 });
+
+describe('error interceptor for fetch exceptions', () => {
+  it('intercepts AbortError when fetch is aborted', async () => {
+    const client = createClient({ baseUrl: 'https://example.com' });
+
+    const abortError = new DOMException(
+      'The operation was aborted',
+      'AbortError',
+    );
+    const mockFetch: MockFetch = vi.fn().mockRejectedValue(abortError);
+
+    const mockErrorInterceptor = vi.fn().mockImplementation((error) => {
+      expect(error).toBe(abortError);
+      return { message: 'Request was aborted', type: 'abort' };
+    });
+
+    const interceptorId = client.interceptors.error.use(mockErrorInterceptor);
+
+    const result = await client.get({
+      fetch: mockFetch,
+      url: '/test',
+    });
+
+    expect(mockErrorInterceptor).toHaveBeenCalledOnce();
+    expect(result.error).toEqual({
+      message: 'Request was aborted',
+      type: 'abort',
+    });
+
+    client.interceptors.error.eject(interceptorId);
+  });
+
+  it('intercepts network errors', async () => {
+    const client = createClient({ baseUrl: 'https://example.com' });
+
+    const networkError = new TypeError('Failed to fetch');
+    const mockFetch: MockFetch = vi.fn().mockRejectedValue(networkError);
+
+    const mockErrorInterceptor = vi.fn().mockImplementation((error) => {
+      expect(error).toBe(networkError);
+      return { message: 'Network error occurred', type: 'network' };
+    });
+
+    const interceptorId = client.interceptors.error.use(mockErrorInterceptor);
+
+    const result = await client.get({
+      fetch: mockFetch,
+      url: '/test',
+    });
+
+    expect(mockErrorInterceptor).toHaveBeenCalledOnce();
+    expect(result.error).toEqual({
+      message: 'Network error occurred',
+      type: 'network',
+    });
+
+    client.interceptors.error.eject(interceptorId);
+  });
+
+  it('throws AbortError when throwOnError is true', async () => {
+    const client = createClient({ baseUrl: 'https://example.com' });
+
+    const abortError = new DOMException(
+      'The operation was aborted',
+      'AbortError',
+    );
+    const mockFetch: MockFetch = vi.fn().mockRejectedValue(abortError);
+
+    const mockErrorInterceptor = vi.fn().mockImplementation(() => ({
+      message: 'Request was aborted',
+      type: 'abort',
+    }));
+
+    const interceptorId = client.interceptors.error.use(mockErrorInterceptor);
+
+    await expect(
+      client.get({
+        fetch: mockFetch,
+        throwOnError: true,
+        url: '/test',
+      }),
+    ).rejects.toEqual({ message: 'Request was aborted', type: 'abort' });
+
+    expect(mockErrorInterceptor).toHaveBeenCalledOnce();
+
+    client.interceptors.error.eject(interceptorId);
+  });
+
+  it('handles fetch exceptions without error interceptor', async () => {
+    const client = createClient({ baseUrl: 'https://example.com' });
+
+    const abortError = new DOMException(
+      'The operation was aborted',
+      'AbortError',
+    );
+    const mockFetch: MockFetch = vi.fn().mockRejectedValue(abortError);
+
+    const result = await client.get({
+      fetch: mockFetch,
+      url: '/test',
+    });
+
+    expect(result.error).toBe(abortError);
+  });
+});
diff --git a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
index b4932899a3..96823e345e 100644
--- a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
+++ b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
@@ -93,7 +93,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {

From 90753091a72796f6c6dffb6789ef42ecc4fd4e6b Mon Sep 17 00:00:00 2001
From: Lubos <lubos@heyapi.dev>
Date: Wed, 12 Nov 2025 20:46:58 +0800
Subject: [PATCH 3/4] Create six-beds-tickle.md

---
 .changeset/six-beds-tickle.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/six-beds-tickle.md

diff --git a/.changeset/six-beds-tickle.md b/.changeset/six-beds-tickle.md
new file mode 100644
index 0000000000..9ba266b24e
--- /dev/null
+++ b/.changeset/six-beds-tickle.md
@@ -0,0 +1,5 @@
+---
+"@hey-api/openapi-ts": patch
+---
+
+**client-fetch**: intercept AbortError

From 6a46317ae8a8cf691c2672536169bd422b5080ac Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 12 Nov 2025 13:05:12 +0000
Subject: [PATCH 4/4] Update snapshots and examples with fetch exception
 handling

Co-authored-by: mrlubos <12529395+mrlubos@users.noreply.github.com>
---
 .../src/client/client/client.gen.ts           | 35 ++++++++++++++++++-
 .../src/client/client/client.gen.ts           | 35 ++++++++++++++++++-
 .../src/client/client/client.gen.ts           | 35 ++++++++++++++++++-
 .../src/client/client/client.gen.ts           | 30 +++++++++++++++-
 .../src/client/client/client.gen.ts           | 35 ++++++++++++++++++-
 .../src/client/client/client.gen.ts           | 35 ++++++++++++++++++-
 .../src/client/client/client.gen.ts           | 30 +++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../2.0.x/form-data/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../sdk-nested-classes/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../@hey-api/sdk/default/client/client.gen.ts | 35 ++++++++++++++++++-
 .../sdk/instance/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../sdk/throwOnError/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../type-format-valibot/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../type-format-zod/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../colada/asClass/client/client.gen.ts       | 35 ++++++++++++++++++-
 .../@pinia/colada/fetch/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../asClass/client/client.gen.ts              | 35 ++++++++++++++++++-
 .../fetch/client/client.gen.ts                | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../react-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../react-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../solid-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../solid-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../svelte-query/asClass/client/client.gen.ts | 35 ++++++++++++++++++-
 .../svelte-query/fetch/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../vue-query/asClass/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../vue-query/fetch/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../2.0.x/schema-unknown/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-api-key/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../2.0.x/security-basic/client/client.gen.ts | 35 ++++++++++++++++++-
 .../2.0.x/security-false/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-oauth2/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../servers-base-path/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../2.0.x/servers-host/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../2.0.x/servers/client/client.gen.ts        | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../sdk-nested-classes/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../@hey-api/sdk/default/client/client.gen.ts | 35 ++++++++++++++++++-
 .../sdk/instance/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../sdk/throwOnError/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../type-format-valibot/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../type-format-zod/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../colada/asClass/client/client.gen.ts       | 35 ++++++++++++++++++-
 .../@pinia/colada/fetch/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../asClass/client/client.gen.ts              | 35 ++++++++++++++++++-
 .../fetch/client/client.gen.ts                | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../react-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../react-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../solid-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../solid-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../svelte-query/asClass/client/client.gen.ts | 35 ++++++++++++++++++-
 .../svelte-query/fetch/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../vue-query/asClass/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../vue-query/fetch/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../security-api-key/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../3.0.x/security-false/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-http-bearer/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-oauth2/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../3.0.x/servers/client/client.gen.ts        | 35 ++++++++++++++++++-
 .../transformers-all-of/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../transformers-array/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../base-url-false/client/client.gen.ts       | 35 ++++++++++++++++++-
 .../base-url-number/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../base-url-strict/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../base-url-string/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../clean-false/client/client.gen.ts          | 35 ++++++++++++++++++-
 .../client-fetch/default/client/client.gen.ts | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../sdk-client-optional/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../sdk-client-required/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../3.1.x/headers/client/client.gen.ts        | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../3.1.x/pagination-ref/client/client.gen.ts | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../sdk-nested-classes/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../@hey-api/sdk/default/client/client.gen.ts | 35 ++++++++++++++++++-
 .../sdk/instance/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../sdk/throwOnError/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../type-format-valibot/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../type-format-zod/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../colada/asClass/client/client.gen.ts       | 35 ++++++++++++++++++-
 .../@pinia/colada/fetch/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../asClass/client/client.gen.ts              | 35 ++++++++++++++++++-
 .../fetch/client/client.gen.ts                | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../react-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../react-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../solid-query/asClass/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../solid-query/fetch/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../svelte-query/asClass/client/client.gen.ts | 35 ++++++++++++++++++-
 .../svelte-query/fetch/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../vue-query/asClass/client/client.gen.ts    | 35 ++++++++++++++++++-
 .../vue-query/fetch/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../name-builder/client/client.gen.ts         | 35 ++++++++++++++++++-
 .../security-api-key/client/client.gen.ts     | 35 ++++++++++++++++++-
 .../3.1.x/security-false/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-http-bearer/client/client.gen.ts | 35 ++++++++++++++++++-
 .../security-oauth2/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../3.1.x/servers/client/client.gen.ts        | 35 ++++++++++++++++++-
 .../3.1.x/sse-fetch/client/client.gen.ts      | 35 ++++++++++++++++++-
 .../transformers-all-of/client/client.gen.ts  | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../transformers-array/client/client.gen.ts   | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../client/client.gen.ts                      | 35 ++++++++++++++++++-
 .../@tanstack/meta/client/client.gen.ts       | 35 ++++++++++++++++++-
 .../class/client/client.gen.ts                | 35 ++++++++++++++++++-
 .../flat/client/client.gen.ts                 | 35 ++++++++++++++++++-
 .../instance/client/client.gen.ts             | 35 ++++++++++++++++++-
 .../opencode/flat/client/client.gen.ts        | 35 ++++++++++++++++++-
 .../opencode/grouped/client/client.gen.ts     | 35 ++++++++++++++++++-
 143 files changed, 4852 insertions(+), 143 deletions(-)

diff --git a/examples/openapi-ts-fastify/src/client/client/client.gen.ts b/examples/openapi-ts-fastify/src/client/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/examples/openapi-ts-fastify/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-fastify/src/client/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-fetch/src/client/client/client.gen.ts b/examples/openapi-ts-fetch/src/client/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/examples/openapi-ts-fetch/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-fetch/src/client/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-openai/src/client/client/client.gen.ts b/examples/openapi-ts-openai/src/client/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/examples/openapi-ts-openai/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-openai/src/client/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-pinia-colada/src/client/client/client.gen.ts b/examples/openapi-ts-pinia-colada/src/client/client/client.gen.ts
index 4a4fc4648f..00dbae3997 100644
--- a/examples/openapi-ts-pinia-colada/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-pinia-colada/src/client/client/client.gen.ts
@@ -85,7 +85,35 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!
-    let response = await _fetch(request)
+    let response: Response
+
+    try {
+      response = await _fetch(request)
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(error, undefined as any, request, opts)) as unknown
+        }
+      }
+
+      finalError = finalError || ({} as unknown)
+
+      if (opts.throwOnError) {
+        throw finalError
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any
+          }
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-tanstack-react-query/src/client/client/client.gen.ts b/examples/openapi-ts-tanstack-react-query/src/client/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/examples/openapi-ts-tanstack-react-query/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-tanstack-react-query/src/client/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-tanstack-svelte-query/src/client/client/client.gen.ts b/examples/openapi-ts-tanstack-svelte-query/src/client/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/examples/openapi-ts-tanstack-svelte-query/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-tanstack-svelte-query/src/client/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/examples/openapi-ts-tanstack-vue-query/src/client/client/client.gen.ts b/examples/openapi-ts-tanstack-vue-query/src/client/client/client.gen.ts
index 4a4fc4648f..00dbae3997 100644
--- a/examples/openapi-ts-tanstack-vue-query/src/client/client/client.gen.ts
+++ b/examples/openapi-ts-tanstack-vue-query/src/client/client/client.gen.ts
@@ -85,7 +85,35 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!
-    let response = await _fetch(request)
+    let response: Response
+
+    try {
+      response = await _fetch(request)
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(error, undefined as any, request, opts)) as unknown
+        }
+      }
+
+      finalError = finalError || ({} as unknown)
+
+      if (opts.throwOnError) {
+        throw finalError
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any
+          }
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/body-response-text-plain/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/body-response-text-plain/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/body-response-text-plain/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/body-response-text-plain/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/form-data/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/form-data/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/form-data/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/form-data/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/schema-unknown/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/schema-unknown/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/schema-unknown/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/schema-unknown/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-api-key/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-api-key/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-api-key/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-api-key/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-basic/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-basic/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-basic/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-basic/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-oauth2/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-oauth2/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-oauth2/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/security-oauth2/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-base-path/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-base-path/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-base-path/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-base-path/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-host/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-host/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-host/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers-host/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/servers/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/transforms-read-write/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/transforms-read-write/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/transforms-read-write/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/2.0.x/transforms-read-write/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/body-response-text-plain/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/body-response-text-plain/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/body-response-text-plain/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/body-response-text-plain/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/internal-name-conflict/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/internal-name-conflict/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/internal-name-conflict/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/internal-name-conflict/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/parameter-explode-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/parameter-explode-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/parameter-explode-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/parameter-explode-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/default/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@pinia/colada/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-api-key/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-api-key/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-api-key/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-api-key/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-http-bearer/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-http-bearer/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-http-bearer/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-http-bearer/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-oauth2/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-oauth2/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-oauth2/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-oauth2/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-open-id-connect/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-open-id-connect/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-open-id-connect/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/security-open-id-connect/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/servers/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/servers/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/servers/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/servers/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-all-of/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-all-of/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-all-of/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-all-of/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-any-of-null/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-any-of-null/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-any-of-null/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-any-of-null/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-array/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-array/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-array/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-array/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-recursive/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-recursive/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-recursive/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transformers-recursive/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transforms-read-write/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transforms-read-write/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transforms-read-write/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.0.x/transforms-read-write/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/body-response-text-plain/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/body-response-text-plain/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/body-response-text-plain/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/body-response-text-plain/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-number/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-number/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-number/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-number/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-strict/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-strict/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-strict/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-strict/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-string/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-string/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-string/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/base-url-string/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/clean-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/clean-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/clean-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/clean-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/default/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/default/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/default/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/default/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/import-file-extension-ts/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/import-file-extension-ts/client/client.gen.ts
index 62806c6c47..8715da997d 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/import-file-extension-ts/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/import-file-extension-ts/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-optional/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-optional/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-optional/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-optional/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-required/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-required/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-required/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/sdk-client-required/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/tsconfig-nodenext-sdk/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/tsconfig-nodenext-sdk/client/client.gen.ts
index 67961302b0..0e4f3174bd 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/tsconfig-nodenext-sdk/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/clients/@hey-api/client-fetch/tsconfig-nodenext-sdk/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/headers/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/headers/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/headers/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/headers/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/internal-name-conflict/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/internal-name-conflict/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/internal-name-conflict/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/internal-name-conflict/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/pagination-ref/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/pagination-ref/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/pagination-ref/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/pagination-ref/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/parameter-explode-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/parameter-explode-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/parameter-explode-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/parameter-explode-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes-instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/client-fetch/sdk-nested-classes/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/default/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/default/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/default/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/default/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/instance/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/sdk/throwOnError/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-valibot/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/transformers/type-format-zod/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-custom-name/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@hey-api/typescript/transforms-read-write-ignore/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@pinia/colada/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/angular-query-experimental/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/react-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/solid-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/svelte-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/asClass/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/plugins/@tanstack/vue-query/name-builder/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-api-key/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-api-key/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-api-key/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-api-key/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-false/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-false/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-false/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-false/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-http-bearer/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-http-bearer/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-http-bearer/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-http-bearer/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-oauth2/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-oauth2/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-oauth2/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-oauth2/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-open-id-connect/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-open-id-connect/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-open-id-connect/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/security-open-id-connect/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/servers/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/servers/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/servers/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/servers/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/sse-fetch/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/sse-fetch/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/sse-fetch/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/sse-fetch/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-all-of/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-all-of/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-all-of/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-all-of/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-any-of-null/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-any-of-null/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-any-of-null/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-any-of-null/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-array/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-array/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-array/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-array/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-recursive/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-recursive/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-recursive/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transformers-recursive/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transforms-read-write/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transforms-read-write/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transforms-read-write/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/3.1.x/transforms-read-write/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/main/test/__snapshots__/plugins/@tanstack/meta/client/client.gen.ts b/packages/openapi-ts-tests/main/test/__snapshots__/plugins/@tanstack/meta/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/main/test/__snapshots__/plugins/@tanstack/meta/client/client.gen.ts
+++ b/packages/openapi-ts-tests/main/test/__snapshots__/plugins/@tanstack/meta/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/class/client/client.gen.ts b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/class/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/class/client/client.gen.ts
+++ b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/class/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/flat/client/client.gen.ts b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/flat/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/flat/client/client.gen.ts
+++ b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/flat/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/instance/client/client.gen.ts b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/instance/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/instance/client/client.gen.ts
+++ b/packages/openapi-ts-tests/sdks/__snapshots__/method-class-conflict/instance/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/sdks/__snapshots__/opencode/flat/client/client.gen.ts b/packages/openapi-ts-tests/sdks/__snapshots__/opencode/flat/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/sdks/__snapshots__/opencode/flat/client/client.gen.ts
+++ b/packages/openapi-ts-tests/sdks/__snapshots__/opencode/flat/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {
diff --git a/packages/openapi-ts-tests/sdks/__snapshots__/opencode/grouped/client/client.gen.ts b/packages/openapi-ts-tests/sdks/__snapshots__/opencode/grouped/client/client.gen.ts
index a439d2748f..c2a5190c22 100644
--- a/packages/openapi-ts-tests/sdks/__snapshots__/opencode/grouped/client/client.gen.ts
+++ b/packages/openapi-ts-tests/sdks/__snapshots__/opencode/grouped/client/client.gen.ts
@@ -95,7 +95,40 @@ export const createClient = (config: Config = {}): Client => {
     // fetch must be assigned here, otherwise it would throw the error:
     // TypeError: Failed to execute 'fetch' on 'Window': Illegal invocation
     const _fetch = opts.fetch!;
-    let response = await _fetch(request);
+    let response: Response;
+
+    try {
+      response = await _fetch(request);
+    } catch (error) {
+      // Handle fetch exceptions (AbortError, network errors, etc.)
+      let finalError = error;
+
+      for (const fn of interceptors.error.fns) {
+        if (fn) {
+          finalError = (await fn(
+            error,
+            undefined as any,
+            request,
+            opts,
+          )) as unknown;
+        }
+      }
+
+      finalError = finalError || ({} as unknown);
+
+      if (opts.throwOnError) {
+        throw finalError;
+      }
+
+      // Return error response
+      return opts.responseStyle === 'data'
+        ? undefined
+        : {
+            error: finalError,
+            request,
+            response: undefined as any,
+          };
+    }
 
     for (const fn of interceptors.response.fns) {
       if (fn) {