stop-worker-during-respond-with.html

<!DOCTYPE html>
<!-- This test cannot be upstreamed to WPT because it relies on the internals API to terminate a
  service worker. -->
<title>Service Worker: Stopping the worker during responding to a fetch</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.js"></script>
<script>

promise_test(t => {
    var SCOPE = 'resources/slow-fetch-and-stop-worker-iframe.html';
    var SCRIPT = 'resources/respondwith-fetch-worker.php';
    return service_worker_unregister_and_register(t, SCRIPT, SCOPE)
      .then(r => {
          add_completion_callback(() => r.unregister());
          return wait_for_state(t, r.installing, 'activated');
        })
      .then(() => { return with_iframe(SCOPE, {auto_remove: true}); })
      .then(f => {
          return new Promise(resolve => {
              addEventListener('message', resolve);
              f.contentWindow.postMessage('run', '*');
            })
        })
      .then(e => {
          assert_equals(e.data, 'Rejected successfully');
        });
  }, 'Stopping the worker during responding fetch event cancels the request.');

</script>

chromium/third_party/blink/web_tests/http/tests/serviceworker/stop-worker-during-respond-with.html