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236665
incorrect z ordering after an animation
https://bugs.webkit.org/show_bug.cgi?id=236665
Summary
incorrect z ordering after an animation
Fujii Hironori
Reported
2022-02-15 13:34:13 PST
Created
attachment 452084
[details]
test case I created this test case just by adding step-end to animations/stacking-context-not-fill-forwards.html. Chrome, Firefox: The green box is topmost Safari: The blue box is topmost
Attachments
test case
(1.43 KB, text/html)
2022-02-15 13:34 PST
,
Fujii Hironori
no flags
Details
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proposed patch, testcase, etc.
Antoine Quint
Comment 1
2022-02-16 01:55:55 PST
If you open the test case with another tab open, then switching to another tab and returning to the test case shows the content in the right state.
Antoine Quint
Comment 2
2022-02-16 02:29:59 PST
The difference here is likely that this animation does not run accelerated (due to using steps-end easing).
Antoine Quint
Comment 3
2022-02-16 02:31:18 PST
We call invalidateStyleAndLayerComposition() when an element's animation completes with acceleration. I expect we fail to do the same in the non-accelerated case.
Radar WebKit Bug Importer
Comment 4
2022-02-17 06:55:53 PST
<
rdar://problem/89084254
>
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