worker-client-id.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:
- /service-workers/service-worker/worker-client-id.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Service Worker: Workers should have their own unique client Id</title>

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

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

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

<body>

<script>

// Get the iframe client ID by calling postMessage() on its controlling

// worker.  This will cause the service worker to post back the

// MessageEvent.source.id value.

function getFrameClientId(frame) {

  return new Promise(resolve => {

    let mc = new MessageChannel();

    frame.contentWindow.navigator.serviceWorker.controller.postMessage(

      'echo-client-id', [mc.port2]);

    mc.port1.onmessage = evt => {

      resolve(evt.data);

};

});

// Get the worker client ID by creating a worker that performs an intercepted

// fetch().  The synthetic fetch() response will contain the FetchEvent.clientId

// value.  This is then posted back to here.

function getWorkerClientId(frame) {

  return new Promise(resolve => {

    let w = new frame.contentWindow.Worker('worker-echo-client-id.js');

    w.onmessage = evt => {

      resolve(evt.data);

};

});

promise_test(async function(t) {

  const script = './resources/worker-client-id-worker.js';

  const scope = './resources/worker-client-id';

  const frame = scope + '/frame.html';

  let reg = await navigator.serviceWorker.register(script, { scope });

  t.add_cleanup(async _ => await reg.unregister());

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

  let f = await with_iframe(frame);

  t.add_cleanup(_ => f.remove());

  let frameClientId = await getFrameClientId(f);

  assert_not_equals(frameClientId, null, 'frame client id should exist');

  let workerClientId = await getWorkerClientId(f);

  assert_not_equals(workerClientId, null, 'worker client id should exist');

  assert_not_equals(frameClientId, workerClientId,

                    'frame and worker client ids should be different');

}, 'Verify workers have a unique client id separate from their owning documents window');

</script>

</body>