navigate-cross-origin-iframe-to-same-url-with-fragment.html

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<body>
<script>
async_test(t => {
  let starting_history_length = history.length;
  let cross_origin_url = new URL(get_host_info().HTTPS_REMOTE_ORIGIN);
  cross_origin_url.pathname = "/common/blank.html";
  cross_origin_url.hash = "#foo";
  let i = document.createElement("iframe");
  i.src = cross_origin_url;
  document.body.appendChild(i);

  window.onload = () => t.step_timeout(() => {
    assert_equals(starting_history_length, history.length);
    i.src = cross_origin_url;
    // Give the navigation time to happen - no events will fire.
    t.step_timeout(() => {
      assert_equals(starting_history_length + 1, history.length);
      t.done();
    }, 100);
  }, 0);
}, "Navigating a cross-origin iframe to its current url should not replace");
</script>
</body>

chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/navigating-across-documents/navigate-cross-origin-iframe-to-same-url-with-fragment.html