cross-origin-traversal-redirect.html

<!doctype html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script>
promise_test(async t => {
  let i = document.createElement("iframe");
  i.src = "resources/cross-origin-redirect-on-second-visit.py?key=" + token();
  document.body.appendChild(i);

  // Wait for after the load event so that the navigation doesn't get converted
  // into a replace navigation.
  await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));

  let original_iframe_url = i.contentWindow.location.href;

  // Do a cross-document push navigation in the iframe.
  i.contentWindow.navigation.navigate("/common/blank.html");
  await new Promise(resolve => i.onload = resolve);

  // Go back. This will trigger a cross-origin redirect, but the navigate event
  // should still fire, and the event url should be the pre-redirect url (which
  // is same-origin).
  history.back();
  let navigate_event_url = await new Promise(resolve => i.contentWindow.navigation.onnavigate = e => {
    resolve(e.destination.url);
  });
  await new Promise(resolve => i.onload = resolve);
  assert_equals(navigate_event_url, original_iframe_url);
}, "A traversal that redirects from same-origin to cross-origin fires the navigate event");
</script>
</body>

chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigate-event/cross-origin-traversal-redirect.html