Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/fast/workers/chromium/worker-finish-crash.html 

<body>
<p>Test to ensure that finishing a Worker won't re-enter. We pass if we don't crash.</p>
<script>

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

var worker = new Worker("does-not-exist.js");
worker.onerror = function() {
    window.stop();
    if (window.testRunner)
        testRunner.notifyDone();
}

</script>
</body>