chromium/third_party/blink/web_tests/external/wpt/xhr/xmlhttprequest-timeout-worker-overrides.html

 <!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>XHR2 Timeout Property Tests in Worker</title>
    <link rel="help" href="https://xhr.spec.whatwg.org/#the-timeout-attribute" data-tested-assertations="following::ol[1]/li[2]" />
    <link rel="help" href="https://xhr.spec.whatwg.org/#handler-xhr-ontimeout" data-tested-assertations="../.."/>
    <link rel="help" href="https://xhr.spec.whatwg.org/#timeout-error" data-tested-assertations=".."/>
    <link rel="help" href="https://xhr.spec.whatwg.org/#request-error" data-tested-assertations="following::ol[1]/li[9]"/>
    <meta name=timeout content=long>
    <meta name=variant content="?timeout disabled after initially set">
    <meta name=variant content="?timeout overrides load after a delay">
    <meta name=variant content="?timeout enabled after initially disabled">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="resources/xmlhttprequest-timeout-runner.js"></script>
</head>
<body>
    <h1>Description</h1>
    <p>This test validates that the XHR2 timeout property behaves as expected in in a worker context.</p>
    <div id="log"></div>
    <script type="text/javascript">
        var worker = new Worker("resources/xmlhttprequest-timeout-overrides.js" + location.search);
        worker.addEventListener("message", testResultCallbackHandler);
    </script>
</body>
</html>