fetch-request-xhr-sync-on-worker.https.html

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This WPT test may be referenced by the following Test IDs:
- /service-workers/service-worker/fetch-request-xhr-sync-on-worker.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Service Worker: Synchronous XHR on Worker is intercepted</title>

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

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

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

<script>

'use strict';

promise_test((t) => {

    const url = 'resources/fetch-request-xhr-sync-on-worker-worker.js';

    const scope = 'resources/fetch-request-xhr-sync-on-worker-scope/';

    const non_existent_file = 'non-existent-file.txt';

    // In Chromium, the service worker scope matching for workers is based on

    // the URL of the parent HTML. So this test creates an iframe which is

    // controlled by the service worker first, and creates a worker from the

    // iframe.

    return service_worker_unregister_and_register(t, url, scope)

      .then((registration) => {

          t.add_cleanup(() => registration.unregister());

          return wait_for_state(t, registration.installing, 'activated');

})

      .then(() => { return with_iframe(scope + 'iframe_page'); })

      .then((frame) => {

          t.add_cleanup(() => frame.remove());

          return frame.contentWindow.performSyncXHROnWorker(non_existent_file);

})

      .then((result) => {

          assert_equals(

              result.status,

              200,

              'HTTP response status code for intercepted request'

);

          assert_equals(

            result.responseText,

              'Response from service worker',

              'HTTP response text for intercepted request'

);

});

  }, 'Verify SyncXHR on Worker is intercepted');

</script>