indow.location.href, iframe_url.href);
          assert_equals(iframe.contentWindow.location.protocol, iframe_url.protocol);
          assert_equals(iframe.contentWindow.location.host, iframe_url.host);
          assert_equals(iframe.contentWindow.location.port, iframe_url.port);
          assert_equals(iframe.contentWindow.location.hostname, iframe_url.hostname);
          assert_equals(iframe.contentWindow.location.pathname, iframe_url.pathname);
          assert_equals(iframe.contentWindow.location.hash,