chromium/third_party/blink/web_tests/external/wpt/workers/SharedWorker_dataUrl.html

<!DOCTYPE html>
<title>Shared Worker: Data URL cross-origin checks</title>
<script src="/common/get-host-info.sub.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
</body>
<script>

function dirname(path) {
  return path.replace(/\/[^\/]*$/, '/');
}

promise_test(t => {
  return new Promise(function(resolve) {
    let count = 0;
    onmessage = e => {
      assert_equals(e.data, 1);
      if (++count == 2) {
        resolve(true);
      }
    };

    let iframeA = document.createElement('iframe');
    document.body.appendChild(iframeA);
    iframeA.src =  get_host_info().HTTP_REMOTE_ORIGIN +
                   dirname(location.pathname) +
                   "support/iframe_sw_dataUrl.html";

    let iframeB = document.createElement('iframe');
    document.body.appendChild(iframeB);
    iframeB.src =  get_host_info().HTTPS_REMOTE_ORIGIN +
                   dirname(location.pathname) +
                   "support/iframe_sw_dataUrl.html";
  });
}, 'Data URL not shared by cross-origin SharedWorkers');

promise_test(t => {
  return new Promise(function(resolve) {
    let count = 0;
    onmessage = e => {
      assert_equals(e.data, ++count);
      if (count == 2) {
        resolve(true);
      }
    };

    let iframeA = document.createElement('iframe');
    document.body.appendChild(iframeA);
    iframeA.src =  get_host_info().HTTP_ORIGIN +
                   dirname(location.pathname) +
                   "support/iframe_sw_dataUrl.html";

    let iframeB = document.createElement('iframe');
    document.body.appendChild(iframeB);
    iframeB.src =  get_host_info().HTTP_ORIGIN +
                   dirname(location.pathname) +
                   "support/iframe_sw_dataUrl.html";
  });
}, 'Data URLs shared by same-origin SharedWorkers');

</script>
</html>