<!doctype html>
<html>
  <head>
    <title>XMLHttpRequest: A timeout network error during preflight should end up in a timeout event</title>
    <script src="/js-test-resources/testharness.js"></script>
    <script src="/js-test-resources/testharnessreport.js"></script>
  </head>
  <body>
    <div id="log"></div>
    <script>
      var test = async_test("Testing timing out preflight")
      test.step(function() {
        var client = new XMLHttpRequest()
        var url = "http://localhost:8000/misc/resources/delayed-log.py?delay=10000000"
        client.open("GET", url, true)
        client.setRequestHeader("X-Custom", "test")
        client.hasTimedout = false;
        client.ontimeout = test.step_func(function () {
            client.hasTimedout = true
        })
        client.onloadend = test.step_func(function () {
            assert_true(client.hasTimedout, "xhr should have timed out")
            test.done()
        })
        client.send(null)
      })
    </script>
  </body>
</html>