I always get error 400

[Fjox]

the protocol is rdp and i use https://github.com/oxplot/tcp2ws to convert it back to tcp
nginx/1.22.1

[tg123]

did you set Sec-WebSocket-Key?

[Fjox]

did you set Sec-WebSocket-Key?

this is not mentioneed anywhere so no

[tg123]

https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.1

This is ws protocol defined in rfc
Please check if your client is compatible with rfc

[Fjox]

https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.1

This is ws protocol defined in rfc Please check if your client is compatible with rfc

oxplot/tcp2ws#3 (comment)

[tg123]

could you please share your config and minimal repro steps?
i can see where is wrong

[Fjox]

could you please share your config and minimal repro steps? i can see where is wrong

its literally just

	location /test {
		websockify_pass x.x.x.x:3389;
	}