mark_signedout | Explore in Territory

<!DOCTYPE html>
<html>
<body>
<script>
// The important part of this page are the headers.

// If this page was opened as a popup, notify the opener.
if (window.opener) {
  window.opener.postMessage("done_loading", "*");
}
</script>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/fedcm/support/mark_signedout