Weekly github digest (HTML specs)

Issues
------
* w3c/webcomponents (+0/-0/💬3)
  2 issues received 3 new comments:
  - #1118 TypeScript & Framework Support for Scoped Custom Element Registries (1 by thescientist13)
    https://github.com/WICG/webcomponents/issues/1118 
  - #1069 [templates] A declarative JavaScript templating API (2 by Eric-P7, mizchi)
    https://github.com/WICG/webcomponents/issues/1069 

* whatwg/html (+12/-10/💬60)
  12 issues created:
  - Https://192.168.8.1 (by saadmuqati238-tech)
    https://github.com/whatwg/html/issues/12020 [invalid] 
  - Active match timing (until-found and <details>) (by jakearchibald)
    https://github.com/whatwg/html/issues/12019 [interop] 
  - Order of lifecycleCallbacks in customeelementregistry.define doesn't match implementations (by lukewarlow)
    https://github.com/whatwg/html/issues/12016 [topic: custom elements] 
  - Upcoming WHATNOT meeting on 2025-12-18 (by cwilso)
    https://github.com/whatwg/html/issues/12015 [agenda+] 
  - Event handler IDL attribute setter works in browsers without an active document (by zcorpan)
    https://github.com/whatwg/html/issues/12014 [topic: events] 
  - Meeting 33 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (by mfreed7)
    https://github.com/whatwg/html/issues/12012 
  - `createContextualFragment`: implementations preload images, spec doesn't. (by noamr)
    https://github.com/whatwg/html/issues/12010 [topic: parser] [needs compat analysis] 
  - Proposal: Unified Low-Resource Execution Path for Chromium (Comparison Insight from WebKit Behavior) (by Erfan-Mohebali)
    https://github.com/whatwg/html/issues/12009 
  - What Does It Mean to Use tabindex=-1 on a type=radio Input Element? (by sb3nder)
    https://github.com/whatwg/html/issues/12007 
  - Deep copy of the newImportMap during merge import maps is redudant (by allstarschh)
    https://github.com/whatwg/html/issues/12006 
  - export some definitions for css-navigation-1 (by dbaron)
    https://github.com/whatwg/html/issues/12003 
  - Offscreencanvas markup mistakes for links. (by karlcow)
    https://github.com/whatwg/html/issues/12001 

  26 issues received 60 new comments:
  - #12019 Active match timing (until-found and <details>) (1 by jakearchibald)
    https://github.com/whatwg/html/issues/12019 [interop] 
  - #12010 `createContextualFragment`: implementations preload images, spec doesn't. (10 by annevk, noamr)
    https://github.com/whatwg/html/issues/12010 [topic: parser] [needs compat analysis] 
  - #12001 Offscreencanvas markup mistakes for links. (2 by Kaiido, karlcow)
    https://github.com/whatwg/html/issues/12001 
  - #11995 Deprecate JSON as `preload` destination in favor of `modulepreload` (1 by KurtCattiSchmidt)
    https://github.com/whatwg/html/issues/11995 
  - #11994 Suggestion: Allow adding `maxcount` to `<input type="email/file" multiple>` (1 by sandstrom)
    https://github.com/whatwg/html/issues/11994 [addition/proposal] [needs implementer interest] [topic: forms] 
  - #11993 Origin API: need to change MessageEvent (2 by annevk, mikewest)
    https://github.com/whatwg/html/issues/11993 [topic: origin] 
  - #11989 Upcoming WHATNOT meeting on 2025-12-11 (3 by KurtCattiSchmidt, cwilso, leotlee)
    https://github.com/whatwg/html/issues/11989 
  - #11975 Revert "Switch dialog/popover to using place-self:dialog" (1 by bfgeek)
    https://github.com/whatwg/html/issues/11975 [topic: style] [integration] 
  - #11889 Meeting 32 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (2 by annevk, mfreed7)
    https://github.com/whatwg/html/issues/11889 
  - #11874 Support for disabling scripts from WebDriver BiDi (4 by juliandescottes, sadym-chromium, zcorpan)
    https://github.com/whatwg/html/issues/11874 [topic: script] [integration] 
  - #11860 Navigation API: Dangling ongoing navigate event causes inconsistent behavior in tests (1 by jnjaeschke)
    https://github.com/whatwg/html/issues/11860 [topic: navigation] 
  - #11839 [focus-without-user-activation] Clarify focus behavior for subframes with denied policy (2 by cwilso, noamr)
    https://github.com/whatwg/html/issues/11839 
  - #11819 Allow deferring commit of a same-origin cross-document navigation (2 by noamr)
    https://github.com/whatwg/html/issues/11819 [addition/proposal] [topic: navigation] [stage: 1] 
  - #11669 Coherent story for HTML-setting methods (3 by noamr, zcorpan)
    https://github.com/whatwg/html/issues/11669 [topic: parser] 
  - #11542 Out of order HTML streaming ("patching") (1 by foolip)
    https://github.com/whatwg/html/issues/11542 [addition/proposal] [topic: parser] [agenda+] [stage: 1] 
  - #11449 Writing Mode for Canvas text (1 by schenney-chromium)
    https://github.com/whatwg/html/issues/11449 [addition/proposal] [needs implementer interest] [topic: canvas] 
  - #10687 Prevent currentScript from being overridden on document via name='' (1 by Eccenux)
    https://github.com/whatwg/html/issues/10687 [normative change] [security/privacy] [topic: script] [security-tracker] 
  - #10671 [images] Lazy loading and out of band loads. (6 by domfarolino, emilio, szager-chromium, zcorpan)
    https://github.com/whatwg/html/issues/10671 [topic: img] 
  - #9479 Proposal: Meta Tag for AI Generated Content (1 by saitho)
    https://github.com/whatwg/html/issues/9479 [addition/proposal] [needs implementer interest] 
  - #9346 <img>.complete should take <source> elements into account (1 by johannesodland)
    https://github.com/whatwg/html/issues/9346 [topic: img] 
  - #9278 Keep sharedWorker alive durning reload / next-page (1 by jimmywarting)
    https://github.com/whatwg/html/issues/9278 [topic: workers] [needs tests] 
  - #9075 API to get top layer elements  (1 by woody-li)
    https://github.com/whatwg/html/issues/9075 [addition/proposal] [needs implementer interest] 
  - #7879 Suboptimal subheading workarounds (9 by YummyBacon5, alecgargett, annevk, myakura)
    https://github.com/whatwg/html/issues/7879 
  - #7810 Add support to the window.open function for the Accept header. (1 by jonasheschl)
    https://github.com/whatwg/html/issues/7810 [addition/proposal] [needs implementer interest] [topic: navigation] 
  - #7578 :active and activating via the keyboard (1 by sb3nder)
    https://github.com/whatwg/html/issues/7578 [interop] [topic: style] 
  - #4140 Editorial: cleanup postMessage() invocation for dedicated workers (1 by divyanshsingh07)
    https://github.com/whatwg/html/issues/4140 [topic: workers] 

  10 issues closed:
  - Https://192.168.8.1 https://github.com/whatwg/html/issues/12020 [invalid] 
  - Upcoming WHATNOT meeting on 2025-12-11 https://github.com/whatwg/html/issues/11989 
  - Meeting 32 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls https://github.com/whatwg/html/issues/11889 
  - [images] Lazy loading and out of band loads. https://github.com/whatwg/html/issues/10671 [topic: img] 
  - Issues with UA styles for select with base appearance https://github.com/whatwg/html/issues/11804 [topic: rendering] [topic: select] 
  - Navigation API: allow registering regular handler from within a precommit handler https://github.com/whatwg/html/issues/11956 [addition/proposal] [needs implementer interest] 
  - The #ongoing-navigate-event is never cleared after a successful download request navigate event fires https://github.com/whatwg/html/issues/11802 [topic: navigation] 
  - Offscreencanvas markup mistakes for links. https://github.com/whatwg/html/issues/12001 
  - Origin API: need to change MessageEvent https://github.com/whatwg/html/issues/11993 [topic: origin] 
  - Suboptimal subheading workarounds https://github.com/whatwg/html/issues/7879 

* whatwg/dom (+3/-0/💬13)
  3 issues created:
  - Implementations do not match spec behavior for .adoptNode(attr) (by Jamesernator)
    https://github.com/whatwg/dom/issues/1440 [topic: nodes] 
  - [meta] MutationObserver improvements tracking issue (by LeaVerou)
    https://github.com/whatwg/dom/issues/1439 
  - downloads.download() should be appear in the API (by NagayamaToshiaki)
    https://github.com/whatwg/dom/issues/1438 [needs implementer interest] [addition/proposal] 

  8 issues received 13 new comments:
  - #1440 Implementations do not match spec behavior for .adoptNode(attr) (1 by annevk)
    https://github.com/whatwg/dom/issues/1440 [topic: nodes] 
  - #1415 Allow `MutationObserver` to observe across `<slot>`s (3 by LeaVerou, sorvell)
    https://github.com/whatwg/dom/issues/1415 [needs implementer interest] [addition/proposal] 
  - #1340 Allow `MutationObserver` to observe (certain) element property changes (1 by LeaVerou)
    https://github.com/whatwg/dom/issues/1340 [needs implementer interest] [addition/proposal] [topic: nodes] 
  - #1289 Add a method like .addTeardown to AbortSignal (1 by michaelficarra)
    https://github.com/whatwg/dom/issues/1289 [needs implementer interest] [addition/proposal] [topic: aborting] 
  - #1283 `mutationObserver.disconnect({ flush: true })` (1 by LeaVerou)
    https://github.com/whatwg/dom/issues/1283 [needs implementer interest] [addition/proposal] [topic: nodes] 
  - #905 Proposal: add `childFilter` option to `MutationObserverInit` (1 by LeaVerou)
    https://github.com/whatwg/dom/issues/905 [needs implementer interest] [addition/proposal] 
  - #533 Make it possible to observe connected-ness of a node (4 by FrameMuse, LeaVerou, rniwa)
    https://github.com/whatwg/dom/issues/533 [addition/proposal] 
  - #398 Consider adding localNameFilter to MutationObserver (1 by LeaVerou)
    https://github.com/whatwg/dom/issues/398 [addition/proposal] [needs concrete proposal] 



Pull requests
-------------
* w3c/webcomponents (+0/-0/💬1)
  1 pull requests received 1 new comments:
  - #1119 Update reference-target-explainer.md (1 by meyerweb)
    https://github.com/WICG/webcomponents/pull/1119 

* whatwg/html (+4/-0/💬47)
  4 pull requests submitted:
  - 12017  (by lukewarlow)
    https://github.com/whatwg/html/pull/12017 
  - 12011  (by domfarolino)
    https://github.com/whatwg/html/pull/12011 
  - 12008  (by josepharhar)
    https://github.com/whatwg/html/pull/12008 
  - 12005  (by milanagowda77656-cloud)
    https://github.com/whatwg/html/pull/12005 

  17 pull requests received 47 new comments:
  - #12017 Fix ordering of lifecycle callbacks to match implementations (1 by annevk)
    https://github.com/whatwg/html/pull/12017 
  - #12011 [Draft] Introduce the new menu elements (2 by mtrootyy)
    https://github.com/whatwg/html/pull/12011 [agenda+] 
  - #12008 Skip light dismiss when opening select's picker (3 by josepharhar, sb3nder)
    https://github.com/whatwg/html/pull/12008 
  - #12005 Add proposal for maxcount attribute (1 by keithamus)
    https://github.com/whatwg/html/pull/12005 [invalid] 
  - #12000 Introduce customelementregistry global attribute (7 by Jamesernator, ja-y-son)
    https://github.com/whatwg/html/pull/12000 
  - #11988 Encourage always-escaping ampersand character. (6 by sideshowbarker, sirreal, tabatkins, zcorpan)
    https://github.com/whatwg/html/pull/11988 [document conformance] [topic: parser] 
  - #11984 Expose NavigationPrecommitController.addHandler (1 by noamr)
    https://github.com/whatwg/html/pull/11984 
  - #11983 Download link: inform the navigation API about aborting (1 by noamr)
    https://github.com/whatwg/html/pull/11983 
  - #11981 Allow "style" and "json" in `as` attribute for `modulepreload` (4 by KurtCattiSchmidt, bakkot)
    https://github.com/whatwg/html/pull/11981 
  - #11980 Add support for video element lazy-loading via the loading attribute (1 by foolip)
    https://github.com/whatwg/html/pull/11980 [addition/proposal] [needs implementer interest] [topic: media] [needs tests] 
  - #11805 Fix base appearance select styles (1 by josepharhar)
    https://github.com/whatwg/html/pull/11805 
  - #11758 Define base appearance for list box select elements (1 by josepharhar)
    https://github.com/whatwg/html/pull/11758 
  - #11560 Redact ancestorOrigins using iframe referrerpolicy (3 by theIDinside, zcorpan)
    https://github.com/whatwg/html/pull/11560 
  - #11536 Change light dismiss to use click events (7 by josepharhar, sb3nder)
    https://github.com/whatwg/html/pull/11536 
  - #11519 [focus-without-user-activation] Allow focus if a descendant has focus (2 by smaug----, zcorpan)
    https://github.com/whatwg/html/pull/11519 
  - #11441 [WebDriver BiDi] enable and disable scripting via BiDi (4 by sadym-chromium, zcorpan)
    https://github.com/whatwg/html/pull/11441 [topic: script] [integration] 
  - #11140 Editorial: export Document's showing hint and auto popover lists (2 by keithamus, lukewarlow)
    https://github.com/whatwg/html/pull/11140 [topic: popover] 

* whatwg/dom (+1/-0/💬2)
  1 pull requests submitted:
  - 1441  (by annevk)
    https://github.com/whatwg/dom/pull/1441 

  1 pull requests received 2 new comments:
  - #1425 Add abortSignal.addAbortCallback (2 by acutmore, michaelficarra)
    https://github.com/whatwg/dom/pull/1425 [needs implementer interest] [addition/proposal] [topic: aborting] 


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, 15 December 2025 17:00:29 UTC