fetch-topics-header-not-visible-in-service-worker.tentative.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /browsing-topics/fetch-topics-header-not-visible-in-service-worker.tentative.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<body>

  <script src=/resources/testharness.js></script>

  <script src=/resources/testharnessreport.js></script>

  <script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>

  <script>

    promise_test(async t => {

      let url = 'resources/fetch-topics-header-not-visible-in-service-worker-helper.tentative.https.html';

      let r = await service_worker_unregister_and_register(t,

          'resources/intercept-request.js', url);

      await wait_for_state(t, r.installing, 'activated');

      var popup_window = window.open("/common/blank.html");

      t.add_cleanup(async _=>{

        popup_window.close();

        await r.unregister();

});

      // The current page isn't yet controlled by the service worker. Thus,

      // execute the actual test in a new page and let it post its result back

      // to this page.

      test_helper_popup_page_result = new Promise((resolve, reject) => {

        window.addEventListener('message', t.step_func((e) => {

          assert_equals(e.data.testResult,

                        'Service worker intercepted no topics header');

          resolve();

        }));

});

      popup_window.location = url;

      await test_helper_popup_page_result;

    }, 'test that the topics header for fetch(<url>, {browsingTopics: true}) is not visible in a service worker context');

  </script>

</body>