File: share-module-cross-origin-fails.sub.html

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<title>Postmessage of a WebAssembly.Module cross-origin fails with a messageerror</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/test-incrementer.js"></script>

<body></body>

<script>
promise_test(async t => {
  // Create an iframe. It will notify this document when the "messageerror"
  // event is triggered.
  const iframe = document.createElement("iframe");
  iframe.src = "//{{domains[www1]}}:{{location[port]}}" +
    "/wasm/serialization/module/resources/incrementer-iframe-failure.html";

  // Instantiate and wait for the document to be loaded.
  const iframeLoaded = new Promise(resolve => iframe.onload = resolve);
  document.body.appendChild(iframe);
  await iframeLoaded;

  const module = await createWasmModule();
  const messageErrorReceived = new Promise(resolve => {
    window.onmessage = ({data}) => {
      if (data == 'messageerror received')
        resolve();
    };
  });
  iframe.contentWindow.postMessage({message: 'send module', module}, "*");
  await messageErrorReceived;
}, "postMessaging a wasm module to a cross-origin iframe fails");
</script>