241419 2022-06-08 08:31:55 -0700 Allow more characters in element/attribute names and prefixes 2026-03-08 23:03:00 -0700 1 1 1 Unclassified WebKit DOM WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=255205 InRadar P2 Normal --- 1 d mike cdumez cyb.ai.815 karlcow mike webkit-bug-importer oldest_to_newest 1874723 0 d 2022-06-08 08:31:55 -0700 See spec changes at https://github.com/whatwg/dom/pull/1079 for: - createAttribute() - setAttribute() - toggleAttribute() - createElement() - createElementNS() - createDocument() - createAttributeNS() - setAttributeNS() and https://github.com/whatwg/html/pull/7991 for updates to "valid custom element name" which impacts: - customElements.define() - customElements.whenDefined() - Whether elements are HTMLElement or HTMLUnknownElement ( https://html.spec.whatwg.org/#elements-in-the-dom:valid-custom-element-name ) 1876015 1 webkit-bug-importer 2022-06-15 08:32:12 -0700 <rdar://problem/95205349> 2130071 2 d 2025-07-14 21:34:32 -0700 We found one more instance, the dataset named property setter: https://github.com/whatwg/html/pull/11453 2168877 3 mike 2026-01-02 07:10:54 -0800 Pull request: https://github.com/WebKit/WebKit/pull/56000 2170212 4 mike 2026-01-08 02:52:23 -0800 Pull request: https://github.com/WebKit/WebKit/pull/56248 2186531 5 ews-feeder 2026-03-03 05:56:28 -0800 Committed 308542@main (14676a639c02): <https://commits.webkit.org/308542@main> Reviewed commits have been landed. Closing PR #56248 and removing active labels. 2186640 6 mike 2026-03-03 11:50:55 -0800 Still need to land https://github.com/WebKit/WebKit/pull/56000 for this 2188189 7 ews-feeder 2026-03-08 06:22:55 -0700 Committed 308884@main (3c11801b7231): <https://commits.webkit.org/308884@main> Reviewed commits have been landed. Closing PR #56000 and removing active labels. 2188301 8 karlcow 2026-03-08 23:03:00 -0700 *** Bug 309468 has been marked as a duplicate of this bug. ***