mdn-issue-by-spec

W3C-relevant MDN issues

Issues filed on MDN Web Docs related to pages attached to technologies developed by W3C.

• [entries-api] `webkitdirectory` of `<input type=”file”>` is now standard (2026-09-02T20:12:02Z)

• [uievents] KeyboardEvent: ctrlKey false on key up of the control key (2026-08-08T10:04:27Z)

• [beacon] Is ‘Use pagehide as a fallback’ clause still needed? (2026-07-27T08:17:18Z)

• [html, uievents] A `load` event listener/handler must “atomically” accompany its element (2026-06-28T15:39:35Z)

• [html, cssom-1] Site-wide: Examples with outdated HTML containing submittable forms can break (2026-06-03T19:55:48Z)

• [resource-timing-2] PerformanceResourceTiming.startTime vs PerformanceResourceTiming.fetchStart (2026-04-22T14:51:17Z)

• [reporting-1] Reporting: there’s no complete list of possible report types (or named reporting endpoints) (2026-04-07T11:37:09Z)

• [cssom-view-1, dom, pointerevents3, pointerlock-2, fullscreen, DOM-Parsing] Refine short-title of WebAPI event pages (2026-03-24T16:11:53Z)

• [IndexedDB-3] Improve the description of IDBFactory.deleteDatabase and mention blocked state (2026-01-14T21:32:58Z)

• [hr-time-3, ecmascript] Fix: CORP does not enable SharedArrayBuffer (2025-12-05T03:19:41Z)

• [service-workers-1] FetchEvent.replacesClientId removed from all browsers for 2+ years (2025-12-02T09:18:10Z)

• [mediasession] MediaSession code samples inexplicable (2025-09-22T17:37:24Z)

• [css-backgrounds-4] Rethink description comment format in CSS syntax boxes (2025-07-22T09:16:06Z)

• [webusb] USB.requestDevice new `exclusionFilters` option (2025-07-15T12:34:44Z)

• [geometry-1] Web APIs’ toJSON() method description is misleading (2025-07-07T11:52:23Z)

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

• [SVG11] SVG examples should be written in proper XML syntax (2025-01-22T23:39:56Z)

• [CSS21, css-display-3] CSS+JS Accessibility best practices - hidden things section - is not promoting best practices (2025-01-06T15:29:04Z)

• [css-font-loading-3] FontFace doc: sizeAdjust is missing (2024-10-31T07:23:20Z)

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

• [touch-events] Note difference in how Touch.screenX/screenY, Touch.clientX/clientY and Touch.pageX/pageY handle zooming (2024-10-14T10:01:23Z)

• [webrtc] webrtc: Call createDataChannel after createOffer (2024-09-18T12:11:30Z)

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

• [appmanifest] IsStandaloneContent does not work with `display: fullscreen` in Chrome Android (2024-07-19T15:53:57Z)

• [webxr] Explanation of `bounded-floor`/`local`/`local-floor` needs improvement (2024-04-16T04:22:18Z)

• [css-typed-om-2] CSS Typed OM pages have stub examples sections (2023-07-22T02:25:00Z)

• [IndexedDB-3] “Using IndexedDB” guide seems to be out of sync with the more specific documentation (2023-06-14T18:17:39Z)

• [IndexedDB-3] versionchange is super important and hardly is given any attention (2023-05-08T06:47:05Z)

• [IndexedDB-3] leading the developer down a dead end in onupgradeneeded (2023-05-08T06:34:43Z)

• [cssom-view-1] Guide on reflow and performance optimizations (2023-04-21T01:08:41Z)

• [SVG11] textPath attribute method doesn’t seem to have an effect (2023-02-01T16:11:22Z)

• [css-align-3] New section to link from longhand to shorthand property (2022-09-16T06:36:39Z)

• [uievents] Event references should list bubbles, cancelable, and composed values (2022-08-15T13:38:07Z)

• [WebCryptoAPI] Precise max length for encoding algorithm (2022-07-06T14:47:35Z)

• [hr-time-3, performance-timeline-2, resource-timing-2, user-timing-2] Topic on setting HTTP priority of resource requests (2022-04-08T02:53:08Z)

• [encoding] Content suggestion: ImageDecoder & ImageTrackList how-to/tutorial (2022-02-07T04:15:29Z)

• [SVG11] “SVGSVGElement.viewBox.baseVal”: when viewBox unset, it is null in FF but a 0-SVGRect in Chrome (2021-09-14T14:00:23Z)

• [webaudio] Content bug: AudioListener and attributes need better examples. (2021-04-26T03:22:48Z)

• [presentation-api] Presentation API docs need rewrite (2021-04-12T01:16:00Z)