dedicated-worker.html

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This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/back-forward-cache/eligibility/dedicated-worker.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta name="timeout" content="long">

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

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

<script src="/common/utils.js"></script>

<script src="/common/dispatcher/dispatcher.js"></script>

<script src="../resources/helper.sub.js"></script>

<script>

// Check whether the page is BFCached when there are dedicated workers that are

// already loaded.

runBfcacheTest({

  funcBeforeNavigation: async () => {

    globalThis.worker = new Worker('../resources/echo-worker.js');

    // Make sure the worker starts before navigation.

    await WorkerHelper.pingWorker(globalThis.worker);

},

  funcAfterAssertion: async (pageA) => {

    // Confirm that the worker is still there.

    assert_equals(

      await pageA.execute_script(() => WorkerHelper.pingWorker(globalThis.worker)),

      'PASS',

      'Worker should still work after restored from BFCache');

}, 'Eligibility: dedicated workers');

</script>