chromium/third_party/blink/web_tests/external/wpt/fenced-frame/resources/popup-noopener-destination.html

<!DOCTYPE html>
<script src="utils.js"></script>
<title>Destination page opened by a frame in a Fenced Frame tree</title>
<script>
  // It is the document that `popup-noopener-inner.html` loads in a new
  // window/tab from a root fenced frame, an iframe in a fenced frame and from
  // a nested fenced frame. It's expected that any popup opened from a Fenced
  // Frame tree cannot reach the opener.
  const [popup_noopener_key, popup_name_key] = parseKeylist();
  if (window.opener) {
    writeValueToServer(popup_noopener_key, "FAIL: window.opener is not null");
  } else {
    writeValueToServer(popup_noopener_key, "PASS");
  }
  if (window.name) {
    writeValueToServer(popup_name_key, "FAIL: window.name is not empty");
  } else {
    writeValueToServer(popup_name_key, "PASS");
  }
</script>