事件：'trailers'

¥Event: 'trailers'

• headers <HTTP/2 Headers Object> 描述标头的对象

  ¥headers <HTTP/2 Headers Object> An object describing the headers

• flags <number> 相关的数字标志

  ¥flags <number> The associated numeric flags

当接收到与尾随标头字段关联的标头块时，则会触发 'trailers' 事件。监听器回调传递 HTTP/2 标头对象 和与标头关联的标志。

¥The 'trailers' event is emitted when a block of headers associated with trailing header fields is received. The listener callback is passed the HTTP/2 Headers Object and flags associated with the headers.

如果在收到标尾之前调用 http2stream.end() 并且未读取或监听传入数据，则可能不会触发此事件。

¥This event might not be emitted if http2stream.end() is called before trailers are received and the incoming data is not being read or listened for.

stream.on('trailers', (headers, flags) => {
  console.log(headers);
}); 拷贝