wpt/css/css-contain/content-visibility/content-visibility-019.sub.https.html at master · web-platform-tests/wpt · GitHub

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<!doctype HTML>
<html class="reftest-wait">
<meta charset="utf8">
<title>Content Visibility: cross-origin iframe locking</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://un5n798jx6qx6j0rmf2verhh.julianrbryant.com/css-contain/#content-visibility">
<link rel="match" href="content-visibility-019-ref.html">
<script src="/common/reftest-wait.js"></script>

<style>
div {
  background: blue;
  color: white;
}
.hidden {
  content-visibility: hidden;
}
</style>

<div>Test passes if there is a box with no text below.</div>
<iframe id="frame" width=400 height=200 src='https://{{domains[www]}}:{{ports[https][0]}}/wpt_internal/display-lock/css-content-visibility/resources/frame.html'></iframe>
<div>Test passes if there is a box with no text above.</div>

<script>
async function runTest() {
  document.getElementById("frame").classList.add("hidden");
  requestAnimationFrame(takeScreenshot);
}

window.onload = () => {
  requestAnimationFrame(() => {
    requestAnimationFrame(runTest);
  });
};
</script>
</html>