stream.ontrailers

• 类型：<Function>

当从对端接收到尾部头时调用的回调。回调接收 (trailers)，其中 trailers 是与 stream.headers 相同格式的对象。如果在不支持头的会话上设置，则抛出 ERR_INVALID_STATE。可读/可写。

🌐 The callback to invoke when trailing headers are received from the peer. The callback receives (trailers) where trailers is an object in the same format as stream.headers. Throws ERR_INVALID_STATE if set on a session that does not support headers. Read/write.