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Session history: a navigation is silently abandoned, with no recovery, when a traversal re-stamps the navigable’s ongoing navigation during the navigation’s in-parallel unload check

Status: Open.

#12581 In whatwg/html;

· sideshowbarker opened on Jun 16, 2026

The "What an img element represents" algorithm is outdated

Status: Open.

#12579 In whatwg/html;

· johannesodland opened on Jun 14, 2026

Session history: synchronous navigations that jump the queue race the paused apply-the-history-step run’s step bookkeeping

Status: Open.

#12576 In whatwg/html;

· sideshowbarker opened on Jun 14, 2026

Customisable Select Grid Layouts Do Not Support Spatial Arrow Navigation

Status: Open.

#12575 In whatwg/html;

· michaeltrilford opened on Jun 14, 2026

Navigation API: Perform navigation & Update URL and history (via replaceState/pushState) race?

Status: Open.

#12574 In whatwg/html;

· theIDinside opened on Jun 13, 2026

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.

Status: Open.

#12573 In whatwg/html;

· dholbert opened on Jun 12, 2026

Remove requirement about <dt> uniqueness

document conformance

Status: Open.

#12571 In whatwg/html;

· zcorpan opened on Jun 12, 2026

Proposal: Allow Atomics.wait on the main thread

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

Status: Open.

#12570 In whatwg/html;

· tlively opened on Jun 11, 2026

Meeting 45 for joint OpenUI-WHATWG/HTML-CSSWG task force on styleable form controls

Status: Open.

#12569 In whatwg/html;

· mfreed7 opened on Jun 11, 2026

"Create navigation params by fetching" missing iframe element referer policy

Status: Open.

#12567 In whatwg/html;

· AtkinsSJ opened on Jun 11, 2026

container variable in internal ancestor origin objects list creation steps is unused

Status: Open.

#12566 In whatwg/html;

· AtkinsSJ opened on Jun 11, 2026

No way to read an image's true intrinsic dimensions when sizes="auto" (or any w-descriptor srcset) is used

Status: Open.

#12565 In whatwg/html;

· austinh opened on Jun 11, 2026