Function requestTimeout

test/angular/1.7/angular.js:13526–13530

()

      };

      var requestTimeout = function() {
        // The response is always empty
        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error
        completeRequest(callback, -1, null, null, '', 'timeout');
      };

      xhr.onerror = requestError;
      xhr.ontimeout = requestTimeout;