src/third_party/web_platform_tests/XMLHttpRequest/open-url-multi-window.htm

<!doctype html>
<html>
  <head>
    <title>XMLHttpRequest: open() resolving URLs (multi-Window; 1)</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <link rel="help" href="https://xhr.spec.whatwg.org/#the-open()-method" data-tested-assertations="following::ol[1]/li[2]/ol[1]/li[2] following::ol[1]/li[7] following::ol[1]/li[14]/ul/li[2]" />
  </head>
  <body>
    <div id="log"></div>
    <script>
      var test = async_test()
      function init() {
        test.step(function() {
          var client = new self[0].XMLHttpRequest()
          client.onreadystatechange = function() {
            test.step(function() {
              if(client.readyState == 4)
                assert_equals(client.responseText, "bottom\n")
                test.done()
            })
          }
          client.open("GET", "folder.txt")
          client.send("")
        })
      }
    </script>
    <iframe src="resources/init.htm"></iframe>
  </body>
</html>