[REQUIRED] Environment info

firebase-tools:9.2.2

Platform:macOS

[REQUIRED] Test case

Check the steps to reproduce. It does not require anything else. Downgrading firebase-tools to, say, 8.16.2, works with that same code.

[REQUIRED] Steps to reproduce

Have emulators running, then

process.env.FIREBASE_AUTH_EMULATOR_HOST = 'localhost:9099'
process.env.FIRESTORE_EMULATOR_HOST = 'localhost:8080'
process.env.NODE_ENV = 'development'
process.env.FIREBASE_TOKEN = 'FAKE_TOKEN'

firebaseTools.firestore.delete(userRef.path, {
    project:   admin.instanceId().app.options.projectId,
    recursive: true,
    yes:       true
 })

[REQUIRED] Expected behavior

Before this commit (9d90a94), which added apiv2 to requireAuth.ts, having process.env.FIREBASE_TOKEN = 'FAKE_TOKEN' was enough to work with the local emulator. After this change, it's not possible.

There was a fix for api.js here (https://github.com/firebase/firebase-tools/pull/2211/files/3a7515e2339c571d1f389ecd42dfc597703ea06e#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4ed) which uses var getTokenPromise = secureRequest ? api.getAccessToken() : Promise.resolve({ access_token: "owner" });. apiv2 on the other hand has just const token = await this.getAccessToken()

[REQUIRED] Actual behavior

Error is returned: "Failed to fetch page after undefined FirebaseError: HTTP Error: 400, invalid jwt" from apiv2.js