chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/unloading-documents/unload/007-1.html

<!doctype html>
007-1
<script>
onunload = function() {
  onunload = null;
  parent.unload_fired = true;
  setTimeout(function() {
               parent.timeout_fired = true;
             }, 100);
}
onload = function() {
  if (!parent.loaded) {
    parent.loaded = true;
    setTimeout(parent.t.step_func(
       function() {
         location="007-2.html?" + Math.random();
       }
    ), 100);
  }
}
</script>