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chromium/third_party/blink/web_tests/external/wpt/navigation-api/navigation-activation/activation-replace-cross-origin.html 

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script>
promise_test(async t => {
  // 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 i = document.createElement("iframe");
  i.src = get_host_info().HTTP_ORIGIN_WITH_DIFFERENT_PORT + "/common/blank.html";
  document.body.appendChild(i);
  await new Promise(resolve => i.onload = () => t.step_timeout(resolve, 0));

  i.contentWindow.location.replace("/common/blank.html");
  await new Promise(resolve => i.onload = () => t.step_timeout(resolve, 0));
  let current_entry_after_nav = i.contentWindow.navigation.currentEntry;

  assert_equals(i.contentWindow.navigation.entries().length, 1);
  assert_equals(i.contentWindow.navigation.activation.entry, current_entry_after_nav);
  assert_equals(i.contentWindow.navigation.activation.from, null);
  assert_equals(i.contentWindow.navigation.activation.navigationType, "replace");
}, "navigation.activation after replace cross-origin");
</script>