postMessage_block.https.html

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

<!DOCTYPE html>

<meta charset=utf-8>

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

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

<body>

<script>

const t = async_test('postMessage and block');

const w = new Worker('support/postMessage_block_worker.js');

w.onmessage = t.step_func_done(() => {

  const a = new Int32Array(new SharedArrayBuffer(4));

  w.postMessage(a);

  while (Atomics.load(a, 0) === 0);

  assert_equals(Atomics.load(a, 0), 1);

});

</script>

</body>