chromium/third_party/blink/web_tests/external/wpt/xhr/send-redirect-infinite-sync.htm

<!doctype html>
<html>
  <head>
    <title>XMLHttpRequest: send() - Redirects (infinite loop; sync)</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <link rel="help" href="https://xhr.spec.whatwg.org/#infrastructure-for-the-send()-method" data-tested-assertations="following::dl[1]/dt[2] following::dl[1]/dd[2]/p[1]" />
    <link rel="help" href="https://xhr.spec.whatwg.org/#network-error" data-tested-assertations=".." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#request-error" data-tested-assertations="following::ol[1]/li[5]" />
  </head>
  <body>
    <div id="log"></div>
    <script>
      function redirect(code) {
        test(function() {
          var client = new XMLHttpRequest()
          client.open("GET", "resources/infinite-redirects.py?type="+code, false)
          assert_throws_dom("NetworkError", function() { client.send(null) })
        }, document.title + " (" + code + ")")
      }
      redirect("301")
    </script>
  </body>
</html>