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1795d587ea
Automatic update from web-platform-tests Don't let a CompositingInputsRoot be a contain:strict element if it was dirty. contain:strict elements are stopping points for ancestor recursion when finding a CompositingInputsRoot, but this should only be for when *descendants* of the contain:strict element are dirtied, not the contain:strict element itself. This problem exhibited in a bug in a case when the contain:strict element was also position:sticky, causing it to fail to update sticky position constraints as a result. Bug: 1051455 Change-Id: If7e9f3d19ce5dc949ee9ba6ab7c0c0c2e03b2f20 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2076546 Reviewed-by: Manuel Rego <rego@igalia.com> Commit-Queue: Chris Harrelson <chrishtr@chromium.org> Cr-Commit-Position: refs/heads/master@{#745093} -- wpt-commits: 859d8a4995e90ac5820ea4ae123aea72996c1a57 wpt-pr: 22000
10 lines
633 B
HTML
10 lines
633 B
HTML
<!doctype html>
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<title>Test that style mutation of contain:strict plus position:sticky updates sticky position</title>
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<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos">
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<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
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<div id="scroller" style="width: 200px; height: 200px; overflow-y: scroll;
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will-change: transform;">
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<div id="scrollbar" style="width: 100px; height: 100px; position: sticky; background: lightblue;
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top: 5px; left: 50px; contain: strict;"></div>
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<div style="width: 100px; height: 500px;"></div>
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</div>
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