chromium/third_party/blink/web_tests/fast/workers/chromium/empty-worker-nocrash.html

<html>
<script>
var worker = new Worker('resources/empty.js');
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}
setTimeout('testRunner.notifyDone()', 20);
</script>
<p>PASS</p>
</html>