chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/overlapping-navigations-and-traversals/cross-document-nav-stop.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Stop during cross-document navigations</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<body>
<script type="module">
import { createIframe, waitForPotentialNetworkLoads } from "./resources/helpers.mjs";

promise_test(async t => {
  const iframe = await createIframe(t);

  iframe.contentWindow.location.search = "?1";
  iframe.contentWindow.onload = t.unreached_func("load event fired");
  iframe.contentWindow.stop();

  await waitForPotentialNetworkLoads(t);
  assert_equals(iframe.contentWindow.location.search, "");
}, "cross-document navigations are stopped by stop()");
</script>