mime-sniffing.https.html

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This WPT test may be referenced by the following Test IDs:
- /service-workers/service-worker/mime-sniffing.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Service Worker: MIME sniffing</title>

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

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

<script src="/common/get-host-info.sub.js"></script>

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

<script>

promise_test(t => {

    const SCOPE = 'resources/blank.html?mime-sniffing';

    const SCRIPT = 'resources/mime-sniffing-worker.js';

    return service_worker_unregister_and_register(t, SCRIPT, SCOPE)

      .then(registration => {

          add_completion_callback(() => registration.unregister());

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

})

      .then(_ => with_iframe(SCOPE))

      .then(frame => {

          add_completion_callback(() => frame.remove());

          assert_equals(frame.contentWindow.document.body.innerText, 'test');

          const h1 = frame.contentWindow.document.getElementById('testid');

          assert_equals(h1.innerText,'test');

});

  }, 'The response from service worker should be correctly MIME siniffed.');

</script>