docs: function (request, callback) {
              this._requests[request.id] = {
                  request : request,
                  cb : callback
              };
  
              // handle timeout
              ariaCoreIO.setTimeout(request.id, request.timeout, {
                  fn : this.onAbort,
                  scope : this,
                  args : [request]
              });
  
              this._createIFrame(request);
              this._submitForm(request, callback);
          }