Dropzone Js corrections

Please correct the Dropzone js file

Updated by below redline
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for (i = _m = 0, _ref5 = files.length - 1; 0 <= _ref5 ? _m <= _ref5 : _m >= _ref5; i = 0 <= _ref5 ? ++_m : --_m) {
          // formData.append(this._getParamName(i), files[i], files[i].name);

          if (typeof files[i] != "undefined") {
              formData.append(this._getParamName(i), files[i], files[i].name);
          } else {
              formData.append(this._getParamName(i), files[i], "");
          }


      }



and this redline
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 xhr.onload = (function(_this) {
        return function(e) {
          var _ref;
          if (files[0] && files[0].status === Dropzone.CANCELED) {
            return;
          }
          if (xhr.readyState !== 4) {
            return;
          }