HarmonyOS http请求，订阅HTTP Response Header事件，没有打印配置header数据

httpRequest.on('headersReceive', (header) => {
  console.info('header: ' + JSON.stringify(header));
});

没有打印我在网络请求上配置的header信息

let responseResult = httpRequest.request(url, {
  method: method,
  readTimeout: Constants.HTTP_READ_TIMEOUT,
  header: {
    'Content-Type': 'application/json',
    'Authorization': basc,
    'Accept-Language': 'zh-CN',
  },
  connectTimeout: 10000,
  extraData: params
});