e', function() {
        test('the request and response events should bubble to window', function(done) {
          server.restore();
          var total = 0;
          function incrementTotal() {
            total++;
            if (total === 5) {
              done();
            }
          }
          window.addEventListener('iron-ajax-presend', incrementTotal);
          window.addEventListener('request', incrementTotal);
          window.addEventListener('iron-ajax-request', incrementTotal);
         