no-opener.html | Explore in Territory

<!doctype html>
<meta charset="utf-8">
<html>
<p>This window should have no opener.</p>
<script src="/common/PrefixedLocalStorage.js"></script>
<script>
var prefixedLocalStorage = new PrefixedLocalStorageResource({
  close_on_cleanup: true
});
function checkOpener () {
  return prefixedLocalStorage.setItem('openerIsNull', window.opener === null);
}
</script>
<body onload="checkOpener()">
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/html/browsers/windows/auxiliary-browsing-contexts/resources/no-opener.html