NEW307878
scoped custom customizes when upgrade called on non-matching registry. 
https://bugs.webkit.org/show_bug.cgi?id=307878
Summary scoped custom customizes when upgrade called on non-matching registry.
Steve Orvell
Reported 2026-02-13 18:08:41 PST
Created attachment 478345 [details] Unexpected custom element customization See the attached reproduction. When `registry2.upgrade` is called on an un-upgraded element defined in a different registry, the element unexpectedly upgrades.
Attachments
Unexpected custom element customization (878 bytes, text/html)
2026-02-13 18:08 PST, Steve Orvell 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Note You need to log in before you can comment on or make changes to this bug.