Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/fenced-frame/resources/navigate-nested-config.html 

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="utils.js"></script>
<title>Navigate a fenced frame to a nested config</title>
<body>
<script>
  const [key] = parseKeylist();
  const configs = window.fence.getNestedConfigs();
  const ff = document.createElement("fencedframe");
  ff.config = configs[0]
  document.body.appendChild(ff);
</script>
</body>
</html>