response.writeContinue()
向客户端发送 HTTP/1.1 100 Continue 消息,指示应发送请求正文。
请参阅 Server 上的 'checkContinue' 事件。
Sends an HTTP/1.1 100 Continue message to the client, indicating that
the request body should be sent. See the 'checkContinue' event on
Server.