Method _error

src/Formidable.js:489–501

(err, eventName = 'error')

  }

  _error(err, eventName = 'error') {
    if (this.error || this.ended) {
      return;
    }

    this.req = null;
    this.error = err;
    this.emit(eventName, err);

    this.openedFiles.forEach((file) => {
      file.destroy();
    });
  }

  _parseContentLength() {
    this.bytesReceived = 0;