object-in-display-none-load-event.html

<!doctype html>
<html style="display:none">
<meta charset=utf-8>
<title>Test that an object in a display:none subtree does not block the load event</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  async_test(t => {
    window.onload = t.step_func_done();
    document.documentElement.offsetTop;
  }, "Load event triggered on window");
</script>
<object data="data:text/html,"></object>
</html>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/the-object-element/object-in-display-none-load-event.html