third_party/web_platform_tests/XMLHttpRequest/open-url-multi-window-5.htm

<!DOCTYPE html>
<html>
  <head>
    <title>XMLHttpRequest: open() resolving URLs (multi-Window; 5)</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[1]" />
  </head>
  <body>
    <div id="log"></div>
    <script>
      var test = async_test(),
          client,
          count = 0
      function init() {
        test.step(function() {
          if(0 == count) {
            client = new self[0].XMLHttpRequest()
            count++
            self[0].location.reload()
          } else if(1 == count) {
            assert_throws("InvalidStateError", function() { client.open("GET", "...") })
            test.done()
          }
        })
      }
    </script>
    <iframe src="resources/init.htm"></iframe>
  </body>
</html>