cancel-animation-shadow-slot-invalidation.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-animations/cancel-animation-shadow-slot-invalidation.html - WPT Dashboard Interop Dashboard

<!doctype html>

<html class="reftest-wait">

<title>CSS Animations Test: Cancel animation for target moving out of flat tree and style invalidation</title>

<link rel="help" href="https://drafts.csswg.org/css-animations/#eventdef-animationevent-animationcancel">

<link rel="help" href="https://crbug.com/1093747">

<link rel="match" href="../reference/pass_if_pass_below.html">

<script src="/common/reftest-wait.js"></script>

<style>

  @keyframes anim {

    from { color: red; }

    to { color: green; }

  #anim { animation: anim 100s; }

  .none { display: none; }

</style>

<p>Test passes if there is the word "PASS" below.</p>

<div id="host"><span id="anim">FAIL</span></div>

<div id="dirty" class="none">PASS</div>

<script>

  const root = host.attachShadow({mode:"open"});

  root.innerHTML = "<slot></slot>";

  requestAnimationFrame(() => {

    root.firstChild.name = "skip-slot";

    dirty.className = "";

    takeScreenshot();

});

</script>