<!DOCTYPE HTML>
<html>
  <head>
    <title>location_reload</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
  </head>
  <body onload="startTest();">
    <div id="log"></div>

    <iframe></iframe>

    <script>
    var history_length;
    async_test(function(t) {

      var url = new URL("./location_reload-iframe.html", window.location).href;

      window._pingCount = 0;
      window._ping = t.step_func(function(innerURL) {
          // Some browsers keep 'about:blank' in the session history
          if (_pingCount == 0) {
            history_length = history.length;
          }
          assert_equals(url, innerURL, "iframe url (" + _pingCount + ")");
          assert_equals(history_length, history.length, "history length (" + _pingCount + ")");
          _pingCount++;
          if (_pingCount == 5) {
            t.done();
          }
      });
    });

    function startTest() {
      var url = new URL("./location_reload-iframe.html", window.location).href;
      var iframe = document.querySelector("iframe");
      iframe.src = url;
      history_length = history.length;
    }
    </script>

  </body>
</html>