Weekly github digest (HTML specs)

Issues
------
* w3c/html-aam (+0/-0/💬1)
  1 issues received 1 new comments:
  - #600 check mappings and a11y of HTMLButtonElement's declarative scroll commands (1 by css-meeting-bot)
    https://github.com/w3c/html-aam/issues/600 [Agenda] 

* w3c/html-aria (+0/-0/💬1)
  1 issues received 1 new comments:
  - #411 Updates to aside element (1 by jongund)
    https://github.com/w3c/html-aria/issues/411 [Allowed roles] [HTML AAM Related] 

* w3c/webcomponents (+0/-0/💬3)
  1 issues received 3 new comments:
  - #967 Interaction between imperative slotting and declarative shadow DOM (3 by justinfagnani, keithamus, sorvell)
    https://github.com/WICG/webcomponents/issues/967 [shadow-dom] [needs concrete proposal] 

* whatwg/html (+16/-9/💬68)
  16 issues created:
  - popover=auto inside popover=hint has really weird results (by jakearchibald)
    https://github.com/whatwg/html/issues/12305 [topic: popover] 
  - popover=hint inconsistent behavior nested vs unnested (by jakearchibald)
    https://github.com/whatwg/html/issues/12304 [topic: popover] 
  - Allow clean distinction of popover vs dialog.show() vs dialog.showModal() toggle events (by teetotum)
    https://github.com/whatwg/html/issues/12300 
  - Setting one permitted sandboxed navigator should not be conditional on noopener being false (by MittelmanDaniel)
    https://github.com/whatwg/html/issues/12297 
  - Meeting 39 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (by mfreed7)
    https://github.com/whatwg/html/issues/12291 
  - HTMLFormElement.requestSubmit should allow specifying form overrides like a submit button does (by nicksloan)
    https://github.com/whatwg/html/issues/12290 [addition/proposal] [needs implementer interest] [topic: forms] 
  - Removing iframe does not update content document's visibility state. (by Psychpsyo)
    https://github.com/whatwg/html/issues/12288 
  - Behavior of showModal on dialog within a hidden container (by Nettsentrisk)
    https://github.com/whatwg/html/issues/12287 
  - outline and ::picker(select) (by annevk)
    https://github.com/whatwg/html/issues/12286 [topic: rendering] [topic: focus] [topic: select] 
  - Creating an iframe's child navigable as written is impossible. (by Psychpsyo)
    https://github.com/whatwg/html/issues/12285 
  - Should baseURI for initial top level javascript URIs be the creators base? (by vinhill)
    https://github.com/whatwg/html/issues/12281 
  - Script execution triggered on child removals/mutation from children change (by shannonbooth)
    https://github.com/whatwg/html/issues/12279 
  - Upcoming WHATNOT meeting on 2026-03-19 (by cwilso)
    https://github.com/whatwg/html/issues/12275 [agenda+] 
  - Passing the scoped custom element registry to the fragment parser has non-obvious side effects (by noamr)
    https://github.com/whatwg/html/issues/12274 [topic: custom elements] [agenda+] 
  - Overscroll areas via command=toggle-overscroll (by vmpstr)
    https://github.com/whatwg/html/issues/12273 [addition/proposal] [needs implementer interest] 
  - <select> popover integration does not appear to be defined (by annevk)
    https://github.com/whatwg/html/issues/12271 [topic: popover] [topic: select] 

  29 issues received 68 new comments:
  - #12291 Meeting 39 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (1 by mfreed7)
    https://github.com/whatwg/html/issues/12291 
  - #12290 HTMLFormElement.requestSubmit should allow specifying form overrides like a submit button does (4 by annevk, nicksloan)
    https://github.com/whatwg/html/issues/12290 [addition/proposal] [needs implementer interest] [topic: forms] 
  - #12286 outline and ::picker(select) (2 by lukewarlow, sb3nder)
    https://github.com/whatwg/html/issues/12286 [topic: rendering] [topic: focus] [topic: select] 
  - #12285 Creating an iframe's child navigable as written is impossible. (1 by Psychpsyo)
    https://github.com/whatwg/html/issues/12285 
  - #12279 Script execution triggered on child removals/mutation from children change (1 by shannonbooth)
    https://github.com/whatwg/html/issues/12279 
  - #12275 Upcoming WHATNOT meeting on 2026-03-19 (4 by noamr, scottjehl)
    https://github.com/whatwg/html/issues/12275 [agenda+] 
  - #12274 Passing the scoped custom element registry to the fragment parser has non-obvious side effects (3 by keithamus, noamr, sorvell)
    https://github.com/whatwg/html/issues/12274 [topic: custom elements] [agenda+] 
  - #12271 <select> popover integration does not appear to be defined (7 by annevk, josepharhar, keithamus, lukewarlow, mfreed7)
    https://github.com/whatwg/html/issues/12271 [topic: popover] [topic: select] 
  - #12268 Clarify behavior of calling attachShadow on a declarative shadowRoot (2 by annevk, sorvell)
    https://github.com/whatwg/html/issues/12268 [topic: shadow] [topic: custom elements] [needs tests] 
  - #12262 Consider marking input buttons as obsolete (4 by annevk, bramus, lukewarlow)
    https://github.com/whatwg/html/issues/12262 [removal/deprecation] [document conformance] [topic: forms] 
  - #12257 interaction of "form element pointer", fragment parsing, and <template> elements seems incorrect (1 by dbaron)
    https://github.com/whatwg/html/issues/12257 [topic: parser] 
  - #12255 Proposal: `<toolbar>` element (3 by lukewarlow, mohammed-ali-osman, noamr)
    https://github.com/whatwg/html/issues/12255 [addition/proposal] [needs implementer interest] [stage: 1] 
  - #12244 Upcoming WHATNOT meeting on 2026-03-12 (1 by cwilso)
    https://github.com/whatwg/html/issues/12244 
  - #12240 Meeting 38 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (3 by annevk, mfreed7, vmpstr)
    https://github.com/whatwg/html/issues/12240 
  - #12224 [forms] Should we reconsider <input type=email>'s selection API support? (3 by annevk, josepharhar, tkent-google)
    https://github.com/whatwg/html/issues/12224 [topic: forms] 
  - #12221 Proposal: for a native <type-writer> element for declarative, accessible text animation. (1 by anafibnshahibul)
    https://github.com/whatwg/html/issues/12221 [addition/proposal] [needs implementer interest] 
  - #12183 :hover and :active changes for <select> (3 by annevk, mfreed7)
    https://github.com/whatwg/html/issues/12183 [topic: selectors] [topic: select] 
  - #12145 Incorrect definition for media element pseudo class `:stalled` (1 by alastor0325)
    https://github.com/whatwg/html/issues/12145 [topic: media] [needs tests] [topic: selectors] 
  - #12085 Proposal: Unblock bfcache for active WebSockets by disconnecting on entry (4 by llannasatoll, ricea, zcorpan)
    https://github.com/whatwg/html/issues/12085 [topic: navigation] [topic: websockets] 
  - #11856 `controls` attribute for `<img>` element (1 by mfreed7)
    https://github.com/whatwg/html/issues/11856 [addition/proposal] [needs implementer interest] [topic: img] [agenda+] 
  - #11729 Menu elements proposal (5 by annevk, emilio, mfreed7)
    https://github.com/whatwg/html/issues/11729 [addition/proposal] [needs implementer interest] [stage: 1] 
  - #11694 Popover: Implicit anchor element removed too early (3 by fantasai, jakearchibald, lukewarlow)
    https://github.com/whatwg/html/issues/11694 [agenda+] [topic: popover] 
  - #11542 Out of order HTML streaming ("patching") (4 by Jamesernator, noamr, zcorpan)
    https://github.com/whatwg/html/issues/11542 [addition/proposal] [topic: parser] [agenda+] [stage: 2] 
  - #10879 Audit and fix innerHTML scripting disabled parsing behavior for template (1 by mfreed7)
    https://github.com/whatwg/html/issues/10879 [topic: parser] [interop] 
  - #10650 HTML-in-Canvas (1 by AutoSponge)
    https://github.com/whatwg/html/issues/10650 [addition/proposal] [needs implementer interest] [topic: canvas] [agenda+] [stage: 1] 
  - #7367 Adding scriptElement.exports for configuration use cases (1 by LeaVerou)
    https://github.com/whatwg/html/issues/7367 [addition/proposal] [topic: script] [topic: imports/exports] 
  - #3518 Proposal: HTML passwordrules attribute (1 by tats-u)
    https://github.com/whatwg/html/issues/3518 [addition/proposal] [needs implementer interest] [document conformance] [security/privacy] [topic: forms] 
  - #2177 Setting headers for EventSource (1 by lachlanhunt)
    https://github.com/whatwg/html/issues/2177 [addition/proposal] [needs implementer interest] [topic: fetch] [topic: eventsource] 
  - #125 spec a way to determine when an iframe fails to load (1 by jabcreations)
    https://github.com/whatwg/html/issues/125 [addition/proposal] [topic: navigation] 

  9 issues closed:
  - Lazy loading video element poster attribute https://github.com/whatwg/html/issues/6636 [addition/proposal] [topic: media] 
  - Video and Audio Element loading=lazy attribute support https://github.com/whatwg/html/issues/10376 [addition/proposal] [needs implementer interest] [topic: media] 
  - Assert violation in 'resolve the finished promise' for non-intercepted same-document traversals https://github.com/whatwg/html/issues/12165 [topic: navigation] 
  - #commit-a-navigate-event needs to defer calling intercept handlers. https://github.com/whatwg/html/issues/12222 [topic: navigation] 
  - :hover and :active changes for <select> https://github.com/whatwg/html/issues/12183 [topic: selectors] [topic: select] 
  - Meeting 38 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls https://github.com/whatwg/html/issues/12240 
  - Upcoming WHATNOT meeting on 2026-03-12 https://github.com/whatwg/html/issues/12244 
  - Clarify behavior of calling attachShadow on a declarative shadowRoot https://github.com/whatwg/html/issues/12268 [topic: shadow] [topic: custom elements] [needs tests] 
  - Incorrect definition for media element pseudo class `:stalled` https://github.com/whatwg/html/issues/12145 [topic: media] [needs tests] [topic: selectors] 

* whatwg/dom (+1/-0/💬6)
  1 issues created:
  - `AbortSignal.timeout()` may not abort past the timeout (by nstepien)
    https://github.com/whatwg/dom/issues/1461 [topic: aborting] 

  2 issues received 6 new comments:
  - #1461 `AbortSignal.timeout()` may not abort past the timeout (4 by annevk, juner, nstepien)
    https://github.com/whatwg/dom/issues/1461 [topic: aborting] 
  - #1458 Support `Temporal.Duration` as an argument to timeout-related APIs (2 by annevk, fabon-f)
    https://github.com/whatwg/dom/issues/1458 [needs implementer interest] [addition/proposal] 



Pull requests
-------------
* w3c/html-aria (+1/-0/💬0)
  1 pull requests submitted:
  - 575  (by daniel-montalvo)
    https://github.com/w3c/html-aria/pull/575 

* whatwg/html (+13/-0/💬28)
  13 pull requests submitted:
  - 12303  (by zcorpan)
    https://github.com/whatwg/html/pull/12303 
  - 12302  (by mikewest)
    https://github.com/whatwg/html/pull/12302 
  - 12299  (by jmdyck)
    https://github.com/whatwg/html/pull/12299 
  - 12298  (by MittelmanDaniel)
    https://github.com/whatwg/html/pull/12298 
  - 12294  (by Psychpsyo)
    https://github.com/whatwg/html/pull/12294 
  - 12292  (by scottjehl)
    https://github.com/whatwg/html/pull/12292 
  - 12284  (by shannonbooth)
    https://github.com/whatwg/html/pull/12284 
  - 12283  (by josepharhar)
    https://github.com/whatwg/html/pull/12283 
  - 12282  (by noamr)
    https://github.com/whatwg/html/pull/12282 
  - 12280  (by cdoublev)
    https://github.com/whatwg/html/pull/12280 
  - 12278  (by maqm41951-eng)
    https://github.com/whatwg/html/pull/12278 
  - 12276  (by maqm41951-eng)
    https://github.com/whatwg/html/pull/12276 
  - 12272  (by lachlanhunt)
    https://github.com/whatwg/html/pull/12272 

  19 pull requests received 28 new comments:
  - #12302 Editorial: Specify `for` on two structs' properties. (2 by annevk, mikewest)
    https://github.com/whatwg/html/pull/12302 
  - #12294 Properly set visibility state for nested documents (1 by Psychpsyo)
    https://github.com/whatwg/html/pull/12294 
  - #12292 Propose addition to org attribution section for contributions to media lazy loading (1 by zcorpan)
    https://github.com/whatwg/html/pull/12292 
  - #12284 Don't prepare script for script elements when src attribute is removed (1 by annevk)
    https://github.com/whatwg/html/pull/12284 
  - #12272 Add EventSource.fromReadableStream() (2 by lachlanhunt)
    https://github.com/whatwg/html/pull/12272 
  - #12267 Add shadowrootslotassignment attribute (1 by keithamus)
    https://github.com/whatwg/html/pull/12267 [topic: custom elements] 
  - #12219 Expand disabled form control event handling spec text (1 by josepharhar)
    https://github.com/whatwg/html/pull/12219 
  - #12205 Fix select option enabled selector (1 by josepharhar)
    https://github.com/whatwg/html/pull/12205 
  - #12148 Fix type mismatch for reflected FrozenArray<T>? (1 by gmvrpw)
    https://github.com/whatwg/html/pull/12148 [needs tests] 
  - #12069 Define base appearance for select multiple drop-down (1 by josepharhar)
    https://github.com/whatwg/html/pull/12069 [agenda+] 
  - #12008 Skip light dismiss when opening select's picker (1 by josepharhar)
    https://github.com/whatwg/html/pull/12008 [agenda+] 
  - #11980 Add support for video and audio element lazy-loading via the loading attribute (2 by scottjehl, zcorpan)
    https://github.com/whatwg/html/pull/11980 [addition/proposal] [topic: media] [stage: 4] 
  - #11965 Move the allow declarative shadow roots flag to the parser (1 by foolip)
    https://github.com/whatwg/html/pull/11965 
  - #11933 Add text imports (3 by annevk, eemeli)
    https://github.com/whatwg/html/pull/11933 [addition/proposal] [topic: script] [agenda+] [needs implementation bugs] 
  - #11881 Make topmargin and leftmargin attributes apply to both sides (1 by zcorpan)
    https://github.com/whatwg/html/pull/11881 
  - #11697 Add external <script type=speculationrules> (1 by vickiez)
    https://github.com/whatwg/html/pull/11697 
  - #11588 Add HTML-in-Canvas APIs (4 by Kaiido, szager-chromium)
    https://github.com/whatwg/html/pull/11588 
  - #11454 Carry over sticky activation for same-origin navs and traversals (2 by annevk, foolip)
    https://github.com/whatwg/html/pull/11454 [addition/proposal] [topic: user activation] 
  - #8300 Add integration points for WebDriver BiDi load scripts (1 by hbenl)
    https://github.com/whatwg/html/pull/8300 [topic: frames/navigables/browsing contexts] [integration] 

* whatwg/dom (+1/-0/💬10)
  1 pull requests submitted:
  - 1460  (by noamr)
    https://github.com/whatwg/dom/pull/1460 

  2 pull requests received 10 new comments:
  - #1460 Differentiate between "children change" steps and "children inserted" steps (9 by annevk, noamr, rniwa, shannonbooth)
    https://github.com/whatwg/dom/pull/1460 
  - #1456 Support markers on shadow roots (1 by foolip)
    https://github.com/whatwg/dom/pull/1456 


Repositories tracked by this digest:
-----------------------------------
* https://github.com/w3c/html-aam
* https://github.com/w3c/html-aria
* https://github.com/w3c/html-extensions
* https://github.com/w3c/htmlwg
* https://github.com/w3c/webcomponents
* https://github.com/whatwg/html
* https://github.com/whatwg/dom


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Received on Monday, 23 March 2026 17:00:29 UTC