RESOLVED FIXED 252808
The animation of CSS custom properties is not valid in the shorthand property 
https://bugs.webkit.org/show_bug.cgi?id=252808
Summary The animation of CSS custom properties is not valid in the shorthand property
yisibl
Reported 2023-02-23 03:15:02 PST
I tested and found that Safari loses animation in the shorthand property. In this demo[1], the 1nd and 3th ones lose animation, and the 5th one has no background color. [1]: https://codepen.io/yisi/pen/NWLxLvB?editors=0100
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Add attachment proposed patch, testcase, etc.
yisibl
Comment 1 2023-02-23 03:15:56 PST
Safari Technology Preview 163(Safari 16.4, WebKit 17615.1.18.100.1)
yisibl
Comment 2 2023-02-23 03:34:24 PST
CSS custom properties have been released in Safari 16.4 beta, is there still time to merge it into that version once the bug is fixed?
Antoine Quint
Comment 3 2023-02-23 05:33:56 PST
Pull request: https://github.com/WebKit/WebKit/pull/10575
Antoine Quint
Comment 4 2023-02-23 05:34:16 PST
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/38672
Antoine Quint
Comment 5 2023-02-23 05:40:44 PST
(In reply to yisibl from comment #2) > CSS custom properties have been released in Safari 16.4 beta, is there still > time to merge it into that version once the bug is fixed? We are aware that this is a valuable bug fix for Safari 16.4. However, we cannot comment on future Safari releases.
EWS
Comment 6 2023-02-23 12:08:43 PST
Committed 260759@main (875f1eabd79a): <https://commits.webkit.org/260759@main> Reviewed commits have been landed. Closing PR #10575 and removing active labels.
Radar WebKit Bug Importer
Comment 7 2023-02-23 12:09:19 PST
<rdar://problem/105845603>
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