Bug 163977
| Summary: | REGRESSION(r190667): [GTK] Layout test fast/css/will-change/will-change-creates-stacking-context-inline.html is failing | ||
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| Product: | WebKit | Reporter: | Michael Catanzaro <mcatanzaro> |
| Component: | WebKitGTK | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | bugs-noreply, dpino, mcatanzaro, simon.fraser |
| Priority: | P2 | ||
| Version: | Other | ||
| Hardware: | PC | ||
| OS: | Linux | ||
| See Also: | https://bugs.webkit.org/show_bug.cgi?id=163979 | ||
Michael Catanzaro
Layout test fast/css/will-change/will-change-creates-stacking-context-inline.html has been broken since r190667 ("will-change should trigger stacking context based purely on properties"). Some of the boxes are no longer stacked as expected. Updating expectations accordingly.
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| Add attachment proposed patch, testcase, etc. |
Simon Fraser (smfr)
Why would gtk have different behavior from mac on this test?
Michael Catanzaro
Absolutely no clue! Three of the boxes in the middle are different than expected. See for example:
https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r207828%20(19045)/fast/css/will-change/will-change-creates-stacking-context-inline-diffs.html
And the related test (bug #163979):
https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r207828%20(19045)/fast/css/will-change/will-change-creates-stacking-context-diffs.html
Simon Fraser (smfr)
Looks like gtk doesn't support:
mix-blend-mode
isolation
-webkit-backdrop-filter
hence the differences.
Michael Catanzaro
OK, thanks for investigating it!
Diego Pino
Test is passing since r264968.