docs: function send(data) {
              verifyState(this);
  
              if (!/^(get|head)$/i.test(this.method)) {
                  if (this.requestHeaders["Content-Type"]) {
                      var value = this.requestHeaders["Content-Type"].split(";");
                      this.requestHeaders["Content-Type"] = value[0] + ";charset=utf-8";
                  } else {
                      this.requestHeaders["Content-Type"] = "text/plain;charset=utf-8";
                  }
  
                  this.requestBody = data;
              }
  
              this.errorFlag = false;
              this.sendFlag = this.async;
              this._readyStateChange(IsotropyXMLHttpRequest.OPENED);
  
              if (typeof this.onSend == "function") {
                  this.onSend(this);
              }
  
              this.dispatchEvent(new HttpRequestEvent("loadstart", false, false, this));
  
              //Let's route this via isotropy
              window.__koa_in_browser.handleIsotropyXMLHttpRequest.call(window.__koa_in_browser, this);
          }