Weekly github digest (HTML specs)

Issues
------
* w3c/webcomponents (+1/-1/💬15)
  1 issues created:
  - TypeScript & Framework Support for Scoped Custom Element Registries (by maxpatiiuk)
    https://github.com/WICG/webcomponents/issues/1118 

  2 issues received 15 new comments:
  - #1118 TypeScript & Framework Support for Scoped Custom Element Registries (2 by rniwa)
    https://github.com/WICG/webcomponents/issues/1118 
  - #1029 Proposal: Custom attributes for all elements, enhancements for more complex use cases (13 by DeepDoge, EisenbergEffect, LeaVerou, annevk, bahrus, clshortfuse, delaneyj, robbiespeed, sorvell, thepassle)
    https://github.com/WICG/webcomponents/issues/1029 

  1 issues closed:
  - TypeScript & Framework Support for Scoped Custom Element Registries https://github.com/WICG/webcomponents/issues/1118 

* whatwg/html (+8/-7/💬45)
  8 issues created:
  - Deprecate JSON as `preload` destination in favor of `modulepreload` (by KurtCattiSchmidt)
    https://github.com/whatwg/html/issues/11995 
  - Suggestion: Allow adding `maxcount` to `<input type="email/file" multiple>` (by ThomasLandauer)
    https://github.com/whatwg/html/issues/11994 [addition/proposal] [needs implementer interest] [topic: forms] 
  - Origin API: need to change MessageEvent (by annevk)
    https://github.com/whatwg/html/issues/11993 [topic: origin] 
  - Use valid CSS for Rendering of `<br>` and `<wbr>` (by Crissov)
    https://github.com/whatwg/html/issues/11991 
  - Express legacy `<font>` rendering with CSS (by Crissov)
    https://github.com/whatwg/html/issues/11990 [topic: rendering] 
  - Upcoming WHATNOT meeting on 2025-12-11 (by cwilso)
    https://github.com/whatwg/html/issues/11989 [agenda+] 
  - Make UA stylesheet bits from css-overflow spec explicit. (by emilio)
    https://github.com/whatwg/html/issues/11986 [normative change] [topic: rendering] 
  - Upcoming WHATNOT meeting on 2025-12-04 (by cwilso)
    https://github.com/whatwg/html/issues/11982 

  19 issues received 45 new comments:
  - #11993 Origin API: need to change MessageEvent (1 by annevk)
    https://github.com/whatwg/html/issues/11993 [topic: origin] 
  - #11991 Use valid CSS for Rendering of `<br>` and `<wbr>` (1 by tabatkins)
    https://github.com/whatwg/html/issues/11991 
  - #11990 Express legacy `<font>` rendering with CSS (2 by Crissov, annevk)
    https://github.com/whatwg/html/issues/11990 [topic: rendering] 
  - #11986 Make UA stylesheet bits from css-overflow spec explicit. (1 by emilio)
    https://github.com/whatwg/html/issues/11986 [normative change] [topic: rendering] 
  - #11982 Upcoming WHATNOT meeting on 2025-12-04 (5 by KurtCattiSchmidt, cwilso, janewman, leotlee)
    https://github.com/whatwg/html/issues/11982 
  - #11964 Upcoming WHATNOT meeting on 2025-11-27 (1 by cwilso)
    https://github.com/whatwg/html/issues/11964 
  - #11956 Navigation API: allow registering regular handler from within a precommit handler (6 by Aman202600, farre, noamr, nt1m)
    https://github.com/whatwg/html/issues/11956 [addition/proposal] [needs implementer interest] 
  - #11835 :focus-within edge cases with DOM mutation and focus moves from within blur/focus event listeners (2 by cwilso, emilio)
    https://github.com/whatwg/html/issues/11835 [topic: focus] 
  - #11802 The #ongoing-navigate-event is never cleared after a successful download request navigate event fires (3 by avandolder, noamr)
    https://github.com/whatwg/html/issues/11802 [topic: navigation] 
  - #11711 WHATUP at TPAC 2025: agenda suggestions (2 by cwilso, xfq)
    https://github.com/whatwg/html/issues/11711 
  - #11641 [focusgroup] Declarative keyboard focus navigation for a scoped set of composite widgets (1 by leotlee)
    https://github.com/whatwg/html/issues/11641 [addition/proposal] [needs implementer interest] [stage: 1] 
  - #11542 Out of order HTML streaming ("patching") (6 by cwilso, foolip, noamr, wmertens)
    https://github.com/whatwg/html/issues/11542 [addition/proposal] [topic: parser] [stage: 1] 
  - #10532 Silence Jake diagram conformance warnings on CI (3 by annevk, sideshowbarker)
    https://github.com/whatwg/html/issues/10532 [spec tooling] 
  - #10182 Allow `<source>` elements to query container sizes (1 by teetotum)
    https://github.com/whatwg/html/issues/10182 [addition/proposal] [needs implementer interest] [topic: img] 
  - #8973 Why does hide popover not have a cancelable event? (2 by Serator, mkrause)
    https://github.com/whatwg/html/issues/8973 [topic: popover] 
  - #7197 Upstreaming from the Sanitizer API (2 by annevk, mozfreddyb)
    https://github.com/whatwg/html/issues/7197 [addition/proposal] [security/privacy] [stage: 2] 
  - #6986 Using the aside element inside other landmarks problematic for screen readers (4 by JoshTumath, cookiecrook, patrickhlauke)
    https://github.com/whatwg/html/issues/6986 [accessibility] [a11y-tracker] 
  - #3683 Escaped characters in source (1 by nishtha-agarwal-211)
    https://github.com/whatwg/html/issues/3683 [good first issue] 
  - #1896 javascript URLs that do not return strings is apparently wrong (1 by zcorpan)
    https://github.com/whatwg/html/issues/1896 [compat] [topic: navigation] [interop] [topic: javascript: URLs] 

  7 issues closed:
  - Use valid CSS for Rendering of `<br>` and `<wbr>` https://github.com/whatwg/html/issues/11991 
  - javascript URLs that do not return strings is apparently wrong https://github.com/whatwg/html/issues/1896 [compat] [topic: navigation] [interop] [topic: javascript: URLs] 
  - WHATUP at TPAC 2025: agenda suggestions https://github.com/whatwg/html/issues/11711 
  - Upcoming WHATNOT meeting on 2025-12-04 https://github.com/whatwg/html/issues/11982 
  - Using the aside element inside other landmarks problematic for screen readers https://github.com/whatwg/html/issues/6986 [accessibility] [a11y-tracker] 
  - Add `to` or `destination` to `NavigationTransition` https://github.com/whatwg/html/issues/11690 [addition/proposal] [needs implementer interest] [topic: navigation] 
  - Upcoming WHATNOT meeting on 2025-11-27 https://github.com/whatwg/html/issues/11964 



Pull requests
-------------
* w3c/webcomponents (+1/-0/💬0)
  1 pull requests submitted:
  - 1119  (by meyerweb)
    https://github.com/WICG/webcomponents/pull/1119 

* whatwg/html (+9/-0/💬24)
  9 pull requests submitted:
  - 12000  (by ja-y-son)
    https://github.com/whatwg/html/pull/12000 
  - 11998  (by shannonbooth)
    https://github.com/whatwg/html/pull/11998 
  - 11992  (by ja-y-son)
    https://github.com/whatwg/html/pull/11992 
  - 11988  (by dmsnell)
    https://github.com/whatwg/html/pull/11988 
  - 11987  (by noamr)
    https://github.com/whatwg/html/pull/11987 
  - 11985  (by nishtha-agarwal-211)
    https://github.com/whatwg/html/pull/11985 
  - 11984  (by noamr)
    https://github.com/whatwg/html/pull/11984 
  - 11983  (by noamr)
    https://github.com/whatwg/html/pull/11983 
  - 11981  (by KurtCattiSchmidt)
    https://github.com/whatwg/html/pull/11981 

  13 pull requests received 24 new comments:
  - #12000 Introduce customelementregistry global attribute (1 by ja-y-son)
    https://github.com/whatwg/html/pull/12000 
  - #11992 Ensure CustomElementRegistry.initialize has CEReaction attribute (1 by ja-y-son)
    https://github.com/whatwg/html/pull/11992 
  - #11988 Encourage always-escaping ampersand character. (9 by annevk, dmsnell, sirreal)
    https://github.com/whatwg/html/pull/11988 [document conformance] [topic: parser] 
  - #11987 Editorial: clean up condition logic in navigate event firing (1 by zcorpan)
    https://github.com/whatwg/html/pull/11987 
  - #11985 Editorial: fix US spelling ('behaviour' → 'behavior') in activation event definition (1 by annevk)
    https://github.com/whatwg/html/pull/11985 
  - #11984 Expose NavigationPrecommitController.addHandler (1 by noamr)
    https://github.com/whatwg/html/pull/11984 
  - #11981 Allow "style" and "json" in `as` attribute for `modulepreload` (2 by KurtCattiSchmidt, annevk)
    https://github.com/whatwg/html/pull/11981 
  - #11980 Add support for video element lazy-loading via the loading attribute (1 by annevk)
    https://github.com/whatwg/html/pull/11980 [addition/proposal] [needs implementer interest] [topic: media] [needs tests] 
  - #11846 [Origin API] Define an `Origin` interface. (#11534) (2 by annevk, mikewest)
    https://github.com/whatwg/html/pull/11846 [topic: origin] 
  - #11588 Add HTML-in-Canvas APIs (1 by foolip)
    https://github.com/whatwg/html/pull/11588 
  - #11560 Redact ancestorOrigins using iframe referrerpolicy (2 by zcorpan)
    https://github.com/whatwg/html/pull/11560 
  - #11441 [WebDriver BiDi] enable and disable scripting via BiDi (1 by sadym-chromium)
    https://github.com/whatwg/html/pull/11441 [topic: script] [integration] 
  - #1904 Change javascript: URL processing to use empty body instead of 204 (1 by zcorpan)
    https://github.com/whatwg/html/pull/1904 [do not merge yet] [topic: navigation] [topic: javascript: URLs] 

* whatwg/dom (+1/-0/💬12)
  1 pull requests submitted:
  - 1437  (by ja-y-son)
    https://github.com/whatwg/dom/pull/1437 

  2 pull requests received 12 new comments:
  - #1437 Update element adoption logic for scoped registry (4 by annevk, ja-y-son)
    https://github.com/whatwg/dom/pull/1437 
  - #1425 Add abortSignal.addAbortCallback (8 by bakkot, jasnell)
    https://github.com/whatwg/dom/pull/1425 [needs implementer interest] [addition/proposal] [topic: aborting] [agenda+] 


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, 8 December 2025 17:00:29 UTC