whatwg/dom

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DOM Standard

Stars: 1.7k
Forks: 339
Open beginner issues: 0
Indexed issues: 182

Dominant language: HTML
License: No license data
Last GitHub push: Aug 25, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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182 open issues indexed

Make preventDefault reserve undo history saving option Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1501 · 1 comment · Opened Sep 1, 2026
Scope-match a selectors string including a pseudo-element selector Open

integration

Difficulty 4/5 3-5 days Newbie friendliness 45/100

whatwg/dom#1497 · 1 comment · Opened Jul 21, 2026
[meta] Extending DOM APIs to support shadow roots tracking issue Open

addition/proposal topic: shadow

whatwg/dom#1475 · 1 assignee · Opened Jun 25, 2026
Add builtin method to calulate line wrapping Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 38/100

whatwg/dom#1472 · 1 comment · Opened Jun 19, 2026
OpaqueRange: cross-post from whatwg/html#11478 for DOM community input Open

topic: ranges

Difficulty 5/5 Over a week Newbie friendliness 10/100

whatwg/dom#1468 · Opened May 28, 2026
importNode should allow null customElementRegistry Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 45/100

whatwg/dom#1463 · 4 comments · Opened Apr 24, 2026
`AbortSignal.timeout()` only aborts from a task Open

topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1461 · 5 comments · Opened Mar 22, 2026
Support `Temporal.Duration` as an argument to timeout-related APIs Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1458 · 3 comments · Opened Mar 15, 2026
Document AbortController removal and some improvements Open

topic: aborting

Difficulty 4/5 3-5 days Newbie friendliness 45/100

whatwg/dom#1449 · 1 comment · Opened Feb 5, 2026
Implementations do not match spec behavior for .adoptNode(attr) Open

topic: nodes

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/dom#1440 · 2 comments · Opened Dec 15, 2025
[meta] MutationObserver improvements tracking issue Open

topic: mutation observers

Difficulty 5/5 Over a week Newbie friendliness 20/100

whatwg/dom#1439 · 5 comments · 3 reactions · Opened Dec 13, 2025
adoptNode() needs to account for <iframe> and friends Open

topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 32/100

whatwg/dom#1428 · Opened Nov 26, 2025
Option to allow `querySelector` to query shadow roots Open

addition/proposal needs implementer interest topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1422 · 10 comments · 1 reaction · Opened Nov 14, 2025
Allow createCDATASection() in HTML documents Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1420 · 1 comment · Opened Nov 6, 2025
Allow `MutationObserver` to observe across `<slot>`s Open

addition/proposal needs implementer interest topic: mutation observers

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1415 · 4 comments · Opened Oct 21, 2025
Proposal: moveOrInsertBefore() Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 45/100

whatwg/dom#1406 · 9 comments · 6 reactions · Opened Sep 29, 2025
Disposable AbortController Open

addition/proposal needs implementer interest topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1405 · 5 comments · 9 reactions · Opened Sep 24, 2025
Proposal: new API to get text content across shadowRoot Open

addition/proposal needs implementer interest topic: nodes topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1395 · 6 comments · Opened Jul 28, 2025
Ability to wait for async abort algorithms? Open

addition/proposal topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1389 · 4 comments · Opened Jul 14, 2025
`preventDefault` and `stopPropagation` in the `addEventListener` options bag Open

addition/proposal needs implementer interest topic: events

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1378 · 1 comment · 3 reactions · Opened Jun 4, 2025
Proposal: Bulk mutation methods for working with ranges of nodes Open

addition/proposal needs implementer interest topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1369 · 4 comments · Opened Apr 14, 2025
Proposal: Enable Custom Form Controls to (Optionally) Conceal Internal/Irrelevant Events Open

addition/proposal needs implementer interest topic: custom elements topic: events

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1368 · 4 comments · Opened Apr 9, 2025
Naming of Composed Range Open

topic: ranges topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1363 · 17 comments · Opened Mar 7, 2025
Should Live Range expose endpoints inside a shadow tree? Open

topic: ranges topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1362 · 12 comments · Opened Feb 27, 2025
Clarify that IDs are not necessarily unique Open

clarification topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1361 · 3 comments · Opened Feb 19, 2025
A slottable's assigned slot is never reset Open

editorial topic: shadow

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/dom#1352 · 4 comments · Opened Feb 1, 2025
Define maximum length and handling of CharacterData nodes Open

topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1351 · 2 comments · Opened Jan 24, 2025
[EventTarget] Abort controller from a past subscription can remove events from future subscriptions Open

interop needs tests topic: aborting topic: events

Difficulty 4/5 3-5 days Newbie friendliness 38/100

whatwg/dom#1346 · 2 comments · 1 reaction · Opened Dec 31, 2024
Allow `MutationObserver` to observe (certain) element property changes Open

addition/proposal needs implementer interest topic: mutation observers topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1340 · 5 comments · 2 reactions · Opened Nov 26, 2024
Missing machinery for associated Event data Open

topic: events

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1328 · 3 comments · Opened Nov 25, 2024
Define iteration order of inclusive ancestors in "remove" Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

whatwg/dom#1322 · Opened Nov 6, 2024
Extension only API to query across shadow trees Open

addition/proposal needs implementer interest topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1321 · 11 comments · 2 reactions · Opened Oct 31, 2024
Allow custom activation behavior to be added to an event Open

addition/proposal needs implementer interest topic: events

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1320 · 6 comments · 1 reaction · Opened Oct 31, 2024
Proposal: add `computed` attribute for great performance! Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1318 · 6 comments · Opened Oct 15, 2024
Methods on ChildNode and ParentNode that take `(Node or DOMString)... nodes` should not use an intermediate DocumentFragment Open

needs tests topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1313 · 4 comments · 2 reactions · Opened Oct 4, 2024
Add `class` as an alias for `className` Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1310 · Opened Sep 17, 2024
Proposal: asynchronous event listeners Open

needs concrete proposal needs implementer interest topic: events

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1308 · 22 comments · 23 reactions · Opened Aug 27, 2024
Proposal: rate limiting event listeners (debounce / throttle) Open

addition/proposal needs implementer interest topic: events

Difficulty 5/5 Over a week Newbie friendliness 20/100

whatwg/dom#1298 · 12 comments · 88 reactions · Opened Jul 20, 2024
Should post-connected steps be able to run multiple times during insertion? Open

topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1291 · Opened May 31, 2024
Add a method like .addTeardown to AbortSignal Open

addition/proposal needs implementer interest topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1289 · 1 comment · 3 reactions · Opened May 18, 2024
Request for mechanism to determine if children changed steps are called as a result of script or parser Open

addition/proposal needs concrete proposal topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1288 · 7 comments · Opened May 16, 2024
`MutationObserver` flag to observe mutations in (open) shadow trees or shadow attachment, to facilitate polyfills of HTML syntax Open

addition/proposal needs implementer interest topic: mutation observers topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1287 · 22 comments · 6 reactions · Opened May 8, 2024
`mutationObserver.disconnect({ flush: true })` Open

addition/proposal needs implementer interest topic: mutation observers topic: nodes

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1283 · 11 comments · 2 reactions · Opened Apr 27, 2024
Proposal AbortSignal.prototype.filter(compare) Open

addition/proposal needs implementer interest topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 25/100

whatwg/dom#1280 · 4 comments · Opened Apr 18, 2024
Proposal: AbortSignal.none() Open

addition/proposal needs implementer interest topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1277 · 4 comments · Opened Apr 9, 2024
Steps of removing a node definition about live range do not match with browsers if the range is in a shadow DOM and the shadow itself is removed Open

topic: ranges

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1274 · 4 comments · Opened Apr 4, 2024
Efficient DOM Removal with the removeElement Function Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 15/100

whatwg/dom#1266 · Opened Mar 26, 2024
Add an optional options dictionary to `closest` to allow jumping across shadow boundaries Open

addition/proposal needs implementer interest topic: shadow

Difficulty 5/5 Over a week Newbie friendliness 45/100

whatwg/dom#1265 · 7 comments · Opened Mar 19, 2024
Add extend and modify methods for the Range object Open

addition/proposal needs implementer interest

Difficulty 5/5 Over a week Newbie friendliness 35/100

whatwg/dom#1264 · Opened Mar 14, 2024
Ability to reset an AbortSignal.timeout Open

addition/proposal needs implementer interest topic: aborting

Difficulty 5/5 Over a week Newbie friendliness 30/100

whatwg/dom#1263 · 3 comments · Opened Mar 2, 2024

whatwg/dom

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