代码上线后，为啥接口一直pending，直到后端返回结束标识，信息才一起返回了
测试环境却是一条一条返回的onChunkReceived能收到
wx.request({
      url: url + "?" + cookieStr,
      data: param,
      responseType: 'arraybuffer',
      enableChunked: true,
      success: res => {
        logger.log({
          r: 'wx_request_success'
        });
        onclose && onclose();
        resolve();
      },
      fail: err => {
        logger.log({
          r: 'wx_request_err',
          err
        });
        onerror(err);
        reject(err);
      }
    });
 this.curRequestController.onChunkReceived(async res => {
      const uint8Array = new Uint8Array(res.data);
      newGetLines(uint8Array);
    });