chromium/third_party/blink/web_tests/fast/dom/Window/resources/window-open-with-different-active-and-opener-windows-subframe.html

<!DOCTYPE html>
<html>
<head>
<script>
function passed() {
  window.top.failed();
}
window.top.open('window-open-with-different-active-and-opener-windows-popup.html');
</script>
</head>
</html>