Server sent a subprotocol but none was requested. The HTTP Sec-WebSocket-Protocol re...
Server sent a subprotocol but none was requested. The HTTP Sec-WebSocket-Protocol request and response header is used in the WebSocket opening handshake to negotiate a sub-protocol to use in the communication. recv(), send(), and similar methods raise the exceptions below when the connection is closed. 0, if you haven’t tried it yet check out our blog post and give it a go! We’ll be using this thread to Learn how to diagnose and fix common WebSocket protocol errors including handshake failures, frame parsing issues, and subprotocol mismatches. The error happens when a client sends one or more subprotocols but during the handshake the server sends back no The server should not send a subprotocol response header with a value other than 'null' if it did not agree to use the subprotocol with the client, and it is the client's responsibility to either continue or We’ve just released support for WebSocket request (beta) in Postman v8. This can Websockets - sending subprotocols (auth token smuggling) results in Error: The script will never generate a response. 5. Learn how to configure a WebSocket API $connect route that requires that clients use a supported subprotocol. This is the expected way to detect disconnections. The server should not send a subprotocol response header with a value other than 'null' if it did not agree to use the subprotocol with the client, and it is the client's responsibility to either continue or terminate the connection at that point. If you are passing a value via Sec-WebSocket-Protocol header, your server has to return the same header/value pair back to the client. 本文记录了作者在使用Postman首次尝试连接WebSocket时遇到的问题及解决方法。 问题在于配置了withSockJS ()导致Postman无法连接， . Raised when trying to interact with a closed connection. gntwqmxghgadxcbshwygjbckdmqoisyjmsiwxzbkmkqegcvijzi