File: open-crossdocument-crossorigin.html

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thunderbird 1%3A115.16.0esr-1~deb12u1
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<!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 => {
  const iframeURL = new URL("resources/cross-origin-iframe-helper.html", location.href);
  iframeURL.hostname = get_host_info().REMOTE_HOST;
  const iframe = document.createElement("iframe");
  iframe.src = iframeURL;
  iframe.name = "windowname";
  document.body.append(iframe);

  window.onmessage = t.step_func_done(e => {
    // If we hit onnavigate in the target window, we'll get a different message, and fail.
    assert_equals(e.data, "DONE");
  });

  navigation.onnavigate = t.unreached_func("onnavigate must not fire in the source window");
  window.onload = t.step_func(() => window.open(iframeURL + "?postMessage-top-when-done", "windowname"));
}, "using window.open() to navigate cross-document targeting a cross-origin window");
</script>