[Webkit-unassigned] [Bug 195388] Fixed elements can flicker on a page that is busy doing layout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195388

--- Comment #3 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Does not reproduce with UI-side compositing and some applyScrollingTreeLayerPositions() work, so does seem to be caused by CACommit racing. I saw in traces that CACommits in main thread and scrolling thread are overlapping.

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