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Add an introduction for scoped custom element registries

topic: custom elementsRelates to custom elements (as defined in DOM and HTML)Relates to custom elements (as defined in DOM and HTML)

Status: Open (in progress).

whatwg/htmlnumber 11473

#11473 In whatwg/html;

· annevk opened on Jul 21, 2025

Add HTMLImageElement.isTypeSupported()

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

needs testsMoving the issue forward requires someone to write testsMoving the issue forward requires someone to write tests

Status: Open (in progress).

whatwg/htmlnumber 10055

#10055 In whatwg/html;

· annevk opened on Jan 12, 2024

Add device-eid and device-imei autocomplete tokens

Status: Open (in progress).

whatwg/htmlnumber 9913

#9913 In whatwg/html;

· annevk opened on Nov 6, 2023

Give ElementInternals element-reflecting attributes more power

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

needs testsMoving the issue forward requires someone to write testsMoving the issue forward requires someone to write tests

topic: shadowRelates to shadow trees (as defined in DOM)Relates to shadow trees (as defined in DOM)

Status: Draft (not ready).

whatwg/htmlnumber 8932

#8932 In whatwg/html;

· annevk opened on Feb 22, 2023

Rework media element removal steps

topic: event loop

topic: media

Status: Open (in progress).

whatwg/htmlnumber 7855

#7855 In whatwg/html;

· annevk opened on Apr 25, 2022

Remove Web storage's Security section

Status: Open (in progress).

whatwg/htmlnumber 5713

#5713 In whatwg/html;

· annevk opened on Jul 8, 2020

Put data URL dedicated workers in their own agent cluster

topic: workers

Status: Open (in progress).

whatwg/htmlnumber 5476

#5476 In whatwg/html;

· annevk opened on Apr 21, 2020

Align with DOM DocumentFragment adoption changes

Status: Open (in progress).

whatwg/htmlnumber 5413

#5413 In whatwg/html;

· annevk opened on Mar 28, 2020

Prevent top-level navigation of data URLs

topic: navigation

Status: Open (in progress).

whatwg/htmlnumber 5279

#5279 In whatwg/html;

· annevk opened on Feb 12, 2020

Substantive createImageBitmap() rewrite

needs testsMoving the issue forward requires someone to write testsMoving the issue forward requires someone to write tests

normative change

topic: canvas

Status: Open (in progress).

whatwg/htmlnumber 3424

#3424 In whatwg/html;

· annevk opened on Jan 29, 2018

Perform "is not origin-clean" on OffscreenCanvas too

do not merge yetPull request must not be merged per rationale in commentPull request must not be merged per rationale in comment

Status: Open (in progress).

whatwg/htmlnumber 3347

#3347 In whatwg/html;

· annevk opened on Jan 12, 2018

Redact ancestorOrigins using "the document's referrer"

normative change

Status: Open (in progress).

whatwg/htmlnumber 2480

#2480 In whatwg/html;

· annevk opened on Mar 30, 2017