Weekly github digest (HTML specs)

Issues
------
* w3c/html-aam (+0/-0/💬2)
  1 issues received 2 new comments:
  - #582 Update indeterminate, validity IDL mappings to reference underlying concept rather than IDL attribute (2 by rahimabdi)
    https://github.com/w3c/html-aam/issues/582 

* w3c/webcomponents (+1/-0/💬0)
  1 issues created:
  - Proposed agenda for CSSWG meeting (by jpzwarte)
    https://github.com/WICG/webcomponents/issues/1124 

* whatwg/html (+38/-12/💬82)
  38 issues created:
  - The "What an img element represents" algorithm is outdated (by johannesodland)
    https://github.com/whatwg/html/issues/12579 
  - Session history: synchronous navigations that jump the queue race the paused apply-the-history-step run’s step bookkeeping (by sideshowbarker)
    https://github.com/whatwg/html/issues/12576 
  - Customisable Select Grid Layouts Do Not Support Spatial Arrow Navigation (by michaeltrilford)
    https://github.com/whatwg/html/issues/12575 
  - Navigation API: Perform navigation & Update URL and history (via replaceState/pushState) race? (by theIDinside)
    https://github.com/whatwg/html/issues/12574 
  - Spec text for width/height APIs on not-rendered images (returning "density-corrected" natural width and height) does not reflect reality of what browsers do. (by dholbert)
    https://github.com/whatwg/html/issues/12573 
  - Remove requirement about <dt> uniqueness (by zcorpan)
    https://github.com/whatwg/html/issues/12571 [document conformance] 
  - Proposal: Allow `Atomics.wait` on the main thread (by tlively)
    https://github.com/whatwg/html/issues/12570 [addition/proposal] [needs implementer interest] 
  - Meeting 45 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (by mfreed7)
    https://github.com/whatwg/html/issues/12569 
  - "Create navigation params by fetching" missing iframe element referer policy (by AtkinsSJ)
    https://github.com/whatwg/html/issues/12567 
  - `container` variable in internal ancestor origin objects list creation steps is unused (by AtkinsSJ)
    https://github.com/whatwg/html/issues/12566 
  - No way to read an image's true intrinsic dimensions when sizes="auto" (or any w-descriptor srcset) is used (by austinh)
    https://github.com/whatwg/html/issues/12565 
  - Critical/Minor Ambiguity: Server-Sent Events MUST return event.data (by jabcreations)
    https://github.com/whatwg/html/issues/12564 [topic: eventsource] 
  - "Evaluate a javascript url" refers to non-existent targetSnapshotParams. (by AtkinsSJ)
    https://github.com/whatwg/html/issues/12563 [topic: javascript: URLs] 
  - Nodes are made non-inert before sanitizing (by zcorpan)
    https://github.com/whatwg/html/issues/12560 [topic: sanitizer] 
  - Select min size (by sb3nder)
    https://github.com/whatwg/html/issues/12559 
  - select fallback button text, div element (by sb3nder)
    https://github.com/whatwg/html/issues/12558 [topic: select] 
  - Explicit bug report: selectionStart and selectionEnd missing from applicable form fields (by jabcreations)
    https://github.com/whatwg/html/issues/12555 
  - Reset Button and Button states should not be auto-directionality form-associated elements (by skyz1)
    https://github.com/whatwg/html/issues/12553 
  - validation of per-element / per-attribute contents (by mozfreddyb)
    https://github.com/whatwg/html/issues/12551 [topic: sanitizer] 
  - Don't allow replaceWithChildrenElements for integration points (by evilpie)
    https://github.com/whatwg/html/issues/12550 [topic: sanitizer] 
  - Custom element registry can call constructor of sanitizer-removed elements (by noamr)
    https://github.com/whatwg/html/issues/12549 [topic: sanitizer] 
  - String-comparison against "href" + "xlink:href" (by otherdaniel)
    https://github.com/whatwg/html/issues/12548 [needs tests] [topic: sanitizer] 
  - Create tests for interesting parser behavior and replaceWithChildrenElements (by zcorpan)
    https://github.com/whatwg/html/issues/12547 [needs tests] [topic: sanitizer] 
  - Handling of `<a href="data:...">` (by evilpie)
    https://github.com/whatwg/html/issues/12546 [topic: sanitizer] 
  - Ensure to document compatibility with Trusted Types createHTML (by evilpie)
    https://github.com/whatwg/html/issues/12545 [topic: sanitizer] 
  - Upstreaming the Sanitizer API to HTML (by mozfreddyb)
    https://github.com/whatwg/html/issues/12544 [topic: sanitizer] 
  - Streaming sanitizer support (by zcorpan)
    https://github.com/whatwg/html/issues/12543 [topic: sanitizer] 
  - Sanitizer preset for navigation-less (by otherdaniel)
    https://github.com/whatwg/html/issues/12542 [topic: sanitizer] 
  - Provide Sanitizer presets for both "script-free" and "fetch free" (by Jamesernator)
    https://github.com/whatwg/html/issues/12541 [topic: sanitizer] 
  - Include additional reasoning for all elements not allowed in the default config (by mozfreddyb)
    https://github.com/whatwg/html/issues/12540 [topic: sanitizer] 
  - Should sanitizer be allowed to remove attributes that create a declarative shadow root? (by noamr)
    https://github.com/whatwg/html/issues/12539 [topic: sanitizer] 
  - Filling a DocumentFragment in the main document can have side effects (by noamr)
    https://github.com/whatwg/html/issues/12538 [topic: sanitizer] 
  - Does the sanitizer impact HTML integration points (by annevk)
    https://github.com/whatwg/html/issues/12537 [topic: sanitizer] 
  - Sanitizer API: Document threat models (by annevk)
    https://github.com/whatwg/html/issues/12536 [topic: sanitizer] 
  - Streaming sanitizer & text node normalization (by noamr)
    https://github.com/whatwg/html/issues/12535 [topic: sanitizer] 
  - Inconsistent handling of parser-processed markup. (by otherdaniel)
    https://github.com/whatwg/html/issues/12534 [topic: sanitizer] 
  - The `is` non-attribute allows custom elements to sneak in (by mozfreddyb)
    https://github.com/whatwg/html/issues/12533 [topic: sanitizer] 
  - What to do about `<selectedcontent>`? (by mozfreddyb)
    https://github.com/whatwg/html/issues/12532 [topic: sanitizer] 

  33 issues received 82 new comments:
  - #12576 Session history: synchronous navigations that jump the queue race the paused apply-the-history-step run’s step bookkeeping (1 by sina-script)
    https://github.com/whatwg/html/issues/12576 
  - #12574 Navigation API: Perform navigation & Update URL and history (via replaceState/pushState) race? (1 by theIDinside)
    https://github.com/whatwg/html/issues/12574 
  - #12571 Remove requirement about <dt> uniqueness (2 by sideshowbarker, zcorpan)
    https://github.com/whatwg/html/issues/12571 [document conformance] 
  - #12569 Meeting 45 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (1 by mfreed7)
    https://github.com/whatwg/html/issues/12569 
  - #12564 Critical/Minor Ambiguity: Server-Sent Events MUST return event.data (2 by annevk, jabcreations)
    https://github.com/whatwg/html/issues/12564 [topic: eventsource] 
  - #12560 Nodes are made non-inert before sanitizing (3 by evilpie, otherdaniel, zcorpan)
    https://github.com/whatwg/html/issues/12560 [topic: sanitizer] 
  - #12559 Select min size (2 by lukewarlow, sb3nder)
    https://github.com/whatwg/html/issues/12559 
  - #12558 select fallback button text, div element (9 by annevk, josepharhar, sb3nder)
    https://github.com/whatwg/html/issues/12558 [topic: select] 
  - #12553 Reset Button and Button states should not be auto-directionality form-associated elements (3 by annevk, skyz1)
    https://github.com/whatwg/html/issues/12553 
  - #12548 String-comparison against "href" + "xlink:href" (3 by annevk, zcorpan)
    https://github.com/whatwg/html/issues/12548 [needs tests] [topic: sanitizer] 
  - #12546 Handling of `<a href="data:...">` (2 by annevk, evilpie)
    https://github.com/whatwg/html/issues/12546 [topic: sanitizer] 
  - #12544 Upstreaming the Sanitizer API to HTML (1 by evilpie)
    https://github.com/whatwg/html/issues/12544 [topic: sanitizer] 
  - #12521 Select in base-appearance mode should probably not have magic clips (1 by josepharhar)
    https://github.com/whatwg/html/issues/12521 [topic: rendering] [needs tests] [topic: select] 
  - #12520 Upcoming WHATNOT meeting on 2026-06-11 (1 by noamr)
    https://github.com/whatwg/html/issues/12520 
  - #12516 Let's bikeshed `counter(fake-counter-name, disclosure-open)` (8 by dbaron, josepharhar, keithamus, sb3nder, tabatkins)
    https://github.com/whatwg/html/issues/12516 [topic: select] 
  - #12503 Meeting 44 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls (3 by josepharhar, lukewarlow, mfreed7)
    https://github.com/whatwg/html/issues/12503 
  - #12496 Make focused area preservation across bfcache reactivation normative (1 by rakina)
    https://github.com/whatwg/html/issues/12496 
  - #12481 Upstream recent changes from sanitizer API after main upstreaming (1 by evilpie)
    https://github.com/whatwg/html/issues/12481 [topic: sanitizer] 
  - #12441 Extraordinary WHATNOT meeting on 2026-06-17 (3 by anaskim, mrego)
    https://github.com/whatwg/html/issues/12441 [meta] 
  - #12342 Selectedcontent in select multiple (1 by css-meeting-bot)
    https://github.com/whatwg/html/issues/12342 [addition/proposal] [needs implementer interest] [topic: select] 
  - #12330 Add the "action" and "method" attributes to <button> (6 by MichaelWest22, alexpetros, jsonn, lcchueri)
    https://github.com/whatwg/html/issues/12330 [addition/proposal] [topic: forms] 
  - #12318 <img controls> for animated images (1 by o-t-w)
    https://github.com/whatwg/html/issues/12318 [needs implementer interest] [topic: media] [topic: img] [needs concrete proposal] 
  - #12246 change of the condition under which select element must have placeholder label option (4 by josepharhar, sb3nder)
    https://github.com/whatwg/html/issues/12246 [topic: select] 
  - #12050 Filtering support for customizable select (5 by annevk, css-meeting-bot, josepharhar)
    https://github.com/whatwg/html/issues/12050 [addition/proposal] [needs implementer interest] [topic: select] 
  - #11729 Menu elements proposal (1 by dbaron)
    https://github.com/whatwg/html/issues/11729 [addition/proposal] [needs implementer interest] [agenda+] [stage: 1] 
  - #11669 Coherent story for HTML-setting methods (2 by CyberAP, noamr)
    https://github.com/whatwg/html/issues/11669 [topic: parser] 
  - #11313 Make <img> src and srcset attributes optional if the source set can be generated from previous sibling <source> elements (6 by foolip, johannesodland)
    https://github.com/whatwg/html/issues/11313 [document conformance] [topic: img] 
  - #11194 Remove support of field-sizing from `<select>` (3 by annevk, josepharhar, lukewarlow)
    https://github.com/whatwg/html/issues/11194 [topic: rendering] [topic: select] 
  - #10677 Canvas TextMetrics additions for editing and text styling (1 by behdad)
    https://github.com/whatwg/html/issues/10677 [addition/proposal] [needs implementer interest] [topic: canvas] [i18n-tracker] 
  - #9614 <teleport> element (1 by CyberAP)
    https://github.com/whatwg/html/issues/9614 [addition/proposal] [needs concrete proposal] 
  - #9075 API to get top layer elements  (1 by teetotum)
    https://github.com/whatwg/html/issues/9075 [addition/proposal] [needs implementer interest] 
  - #7197 Upstreaming from the Sanitizer API (1 by evilpie)
    https://github.com/whatwg/html/issues/7197 [addition/proposal] [security/privacy] [stage: 2] [topic: sanitizer] 
  - #6532 Getting the current source size value of an img (1 by austinh)
    https://github.com/whatwg/html/issues/6532 [addition/proposal] [needs implementer interest] [topic: img] 

  12 issues closed:
  - indeterminate <input type=checkbox> definition confusing https://github.com/whatwg/html/issues/5079 [topic: forms] 
  - Add <dfn> for "indeterminate" boolean concept https://github.com/whatwg/html/issues/11301 
  - The indeterminateness should be included in the cloning steps for input elements https://github.com/whatwg/html/issues/12529 [topic: forms] 
  - Meeting 44 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls https://github.com/whatwg/html/issues/12503 
  - Upcoming WHATNOT meeting on 2026-06-11 https://github.com/whatwg/html/issues/12520 
  - Select min size https://github.com/whatwg/html/issues/12559 
  - Reset Button and Button states should not be auto-directionality form-associated elements https://github.com/whatwg/html/issues/12553 
  - Canonicalizing each member in the SanitizerConfig seems too loosely defined https://github.com/whatwg/html/issues/12515 [topic: sanitizer] 
  - <teleport> element https://github.com/whatwg/html/issues/9614 [addition/proposal] [needs concrete proposal] 
  - Handling of `<a href="data:...">` https://github.com/whatwg/html/issues/12546 [topic: sanitizer] 
  - Upstreaming the Sanitizer API to HTML https://github.com/whatwg/html/issues/12544 [topic: sanitizer] 
  - Upstreaming from the Sanitizer API https://github.com/whatwg/html/issues/7197 [addition/proposal] [security/privacy] [stage: 2] [topic: sanitizer] 

* whatwg/dom (+1/-0/💬4)
  1 issues created:
  - https://www.w3.org/users/176311/ (by alexandercarlis2-dotcom)
    https://github.com/whatwg/dom/issues/1471 

  2 issues received 4 new comments:
  - #1265 Add an optional options dictionary to `closest` to allow jumping across shadow boundaries (3 by GarrettS, gijsk)
    https://github.com/whatwg/dom/issues/1265 [topic: shadow] [needs implementer interest] [addition/proposal] 
  - #725 Composed tree infrastructure (1 by annevk)
    https://github.com/whatwg/dom/issues/725 [topic: shadow] 



Pull requests
-------------
* whatwg/html (+8/-0/💬10)
  8 pull requests submitted:
  - 12578  (by Payal-03)
    https://github.com/whatwg/html/pull/12578 
  - 12572  (by zcorpan)
    https://github.com/whatwg/html/pull/12572 
  - 12568  (by dbaron)
    https://github.com/whatwg/html/pull/12568 
  - 12562  (by annevk)
    https://github.com/whatwg/html/pull/12562 
  - 12561  (by zcorpan)
    https://github.com/whatwg/html/pull/12561 
  - 12557  (by jmdyck)
    https://github.com/whatwg/html/pull/12557 
  - 12554  (by foolip)
    https://github.com/whatwg/html/pull/12554 
  - 12552  (by evilpie)
    https://github.com/whatwg/html/pull/12552 

  6 pull requests received 10 new comments:
  - #12554 Define privacy-preserving rendering (3 by annevk, nigelmegitt)
    https://github.com/whatwg/html/pull/12554 
  - #12528 HTML insertion positional methods (1 by noamr)
    https://github.com/whatwg/html/pull/12528 
  - #12513 Expose redirectCount for TAO opted-in redirect chains (2 by noamr, yoavweiss)
    https://github.com/whatwg/html/pull/12513 [do not merge yet] 
  - #12444 Add `<meta name="responsive-embedded-sizing">` (1 by noamr)
    https://github.com/whatwg/html/pull/12444 
  - #12263 Clone into all descendant selectedcontent elements (1 by josepharhar)
    https://github.com/whatwg/html/pull/12263 [topic: select] 
  - #11588 Add HTML-in-Canvas APIs (2 by foolip, progers)
    https://github.com/whatwg/html/pull/11588 


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 June 2026 17:00:32 UTC