docs: function abort() {
              this.aborted = true;
              this.responseText = null;
              this.errorFlag = true;
              this.requestHeaders = {};
  
              if (this.readyState > IsotropyXMLHttpRequest.UNSENT && this.sendFlag) {
                  this._readyStateChange(IsotropyXMLHttpRequest.DONE);
                  this.sendFlag = false;
              }
  
              this.readyState = IsotropyXMLHttpRequest.UNSENT;
  
              this.dispatchEvent(new HttpRequestEvent("abort", false, false, this));
              if (typeof this.onerror === "function") {
                  this.onerror();
              }
          }