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Test Info:

<!doctype html>
<html class="reftest-wait">
<title>Test that style mutation of contain:strict plus position:sticky updates sticky position</title>
<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
<link rel="match" href="position-sticky-scroll-reposition-ref.html">
<div id="scroller" style="width: 200px; height: 200px; overflow-y: scroll;
will-change: transform;">
<div id="sticky" style="width: 100px; height: 100px; position: sticky; background: lightblue;
top: 50px; left: 50px; contain: strict;"></div>
<div style="width: 100px; height: 500px;"></div>
</div>
<script src="/common/reftest-wait.js"></script>
<script>
requestAnimationFrame(() =>
requestAnimationFrame(() => {
sticky.style.top = '5px';
takeScreenshot();
}));
</script>