mdn-issue-by-spec

WHATWG HTML Workstream-relevant MDN issues

Issues filed on MDN Web Docs related to pages attached to technologies developed by WHATWG HTML Workstream.

• [html] pushState() and navigations and history navigation rate limiting no longer throws (2026-06-15T16:42:56Z)

• [html] No screen reader information (2026-06-09T12:18:46Z)

• [html, cssom-1] Form submission causes playground iframe to lose runner state and become unusable. (2026-06-04T13:47:57Z)

• [html, cssom-1] Site-wide: Examples with outdated HTML containing submittable forms can break (2026-06-03T19:55:48Z)

• [html] Form submission event triggers (2026-04-30T11:30:08Z)

• [html] contextmenu is a Pointer Event (2026-04-27T18:20:44Z)

• [html] Cannot prevent cancel when user presses Escape twice (2026-04-27T12:23:34Z)

• [html] detecting MIME type of file is done by extension (2026-04-15T21:11:15Z)

• [html] Web Storage API documentation pages fail to mention state partitioning (2026-02-26T10:43:03Z)

• [html] Poor choice of canvas id (2025-11-27T23:12:59Z)

• [html] Update uses of `PredefinedColorSpace` to include `srgb-linear` and `display-p3-linear` (2025-11-21T17:38:23Z)

• [html] Caret position not mentioned or demonstrated for setSelectionRange() (2025-10-19T00:50:03Z)

• [html] The figure doesn’t show the direction of rotation (2025-10-16T00:30:25Z)

• [html] DataTransfer.setData: is it writable after dragstart? (2025-09-25T05:36:49Z)

• [html, css-backgrounds-4, requestidlecallback] Reference page titles are not consistent and need improvements (2025-06-11T04:16:02Z)

• [html] Mention Firefox Anti-fingerprinting on `getImageData()` page (2025-04-11T18:49:23Z)

• [html] Clarify image.decode() failure on lazy-loaded images (2025-02-08T00:22:15Z)

• [html] Missing documentation for AudioSession (2024-11-22T20:58:39Z)

• [html, uievents] Inconsistency in dragover event timing information (2024-11-07T19:25:18Z)

• [html, wai-aria-1.2] All `ElementInternals` docs for `ARIAMixin` properties are incorrect (2024-10-26T03:40:30Z)

• [html, uievents, dom] Event pages: claim (or imply) that onXYZ and addEventListener are equivalent but they are not (2024-08-09T02:19:02Z)

• [html] HTMLMediaElement.currentTime: precision seems different from Date.now (2024-07-30T09:34:47Z)

• [html] Improve `messageerror` example to show a case in which the event is fired (2024-07-25T16:05:45Z)

• [html] HTML <iframe>: allow attribute needs stand-alone topic (2024-02-09T06:10:46Z)

• [html] Article element in a wrong implementation (2023-09-13T12:53:45Z)

• [html] Cannot download with the “Download my painting” button; CSP error: “blocked the loading of a resource at data:image/png;base64” (2023-07-21T02:38:19Z)

• [html] Image request fired as soon as src is set (2023-05-03T17:23:34Z)

• [html] Custom element constructor `disabledFeatures` property undocumented (2021-07-06T07:29:36Z)