[Webkit-unassigned] [Bug 217812] REGRESSION(268444?): [ Win10 wk1 ews ] transforms/2d/scale-change-composited.html is a flaky failure

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Oct 16 11:54:22 PDT 2020


https://bugs.webkit.org/show_bug.cgi?id=217812

Karl Rackler <rackler at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|REGRESSION: [ Win10 wk1 ews |REGRESSION(268444?): [
                   |]                           |Win10 wk1 ews ]
                   |transforms/2d/scale-change- |transforms/2d/scale-change-
                   |composited.html is a flaky  |composited.html is a flaky
                   |failure                     |failure

--- Comment #5 from Karl Rackler <rackler at apple.com> ---
Description:
transforms/2d/scale-change-composited.html
transforms/2d/rotate-change-composited.html
transforms/2d/translate-change-composited.html

I went back further and can see build https://ews-build.webkit.org/#/builders/10/builds/38853 appears to be the first occurrence.

Around that same time period commit r268444 was made.  This is were the test were added.

The commit has to do with transform-origin is applied on top of invidivual CSS transform properties on composited layers, which could have introduced the flakiness.  

The change was introduced here https://trac.webkit.org/changeset/268444/webkit.

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