RESOLVED FIXED302534
CustomElementRegistry.prototype.initialize should upgrade custom elements 
https://bugs.webkit.org/show_bug.cgi?id=302534
Summary CustomElementRegistry.prototype.initialize should upgrade custom elements
Ryosuke Niwa
Reported 2025-11-14 08:01:29 PST
Implement https://github.com/whatwg/html/pull/11913.
Attachments
Add attachment proposed patch, testcase, etc.
Ryosuke Niwa
Comment 1 2025-11-14 08:09:29 PST
Pull request: https://github.com/WebKit/WebKit/pull/53939
Ryosuke Niwa
Comment 2 2025-11-14 08:10:26 PST
*** Bug 302532 has been marked as a duplicate of this bug. ***
EWS
Comment 3 2025-11-19 06:46:14 PST
Committed 303250@main (c13b9f161be7): <https://commits.webkit.org/303250@main> Reviewed commits have been landed. Closing PR #53939 and removing active labels.
Radar WebKit Bug Importer
Comment 4 2025-11-19 06:47:13 PST
<rdar://problem/165045530>
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