reparent-animating-element-001.html

<!DOCTYPE html>
<html class="test-wait">
<title>CSS Test (Animations): Reparenting an element with a web animation on the compositor</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Google" href="http://www.google.com/">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1301838">
<meta name="assert" content="This should not crash.">

<style>
#animate {
  width: 100px;
  height: 100px;
  background: blue;
}
</style>
<div id="animate"></div>
<div id="newparent"></div>
<script>

document.getElementById("animate").animate(
  [
    { transform: "rotate(0deg)" },
    { transform: "rotate(360deg)" }
  ],
  {
    duration: 5000,
    iterations: Infinity
  }
);

requestAnimationFrame(function() {
  requestAnimationFrame(function() {
    document.getElementById("newparent").appendChild(document.getElementById("animate"));
    requestAnimationFrame(function() {
      document.documentElement.classList.remove("test-wait");
    });
  });
});

</script>

chromium/third_party/blink/web_tests/external/wpt/web-animations/crashtests/reparent-animating-element-001.html