From 5bedcd24e2ba621b32dc7c19635ca788bdf20f8e Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Tue, 28 Sep 2021 21:25:06 +0200
Subject: [PATCH] Add support for IRCv3 WebSocket text subprotocol

Technically we aren't spec-compliant since we don't serve
binary.ircv3.net. Any complaints will be redirected to /dev/null.
---
 server.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/server.go b/server.go
index db08a73..f09492a 100644
--- a/server.go
+++ b/server.go
@@ -206,6 +206,7 @@ func (s *Server) Serve(ln net.Listener) error {
 
 func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	conn, err := websocket.Accept(w, req, &websocket.AcceptOptions{
+		Subprotocols:   []string{"text.ircv3.net"}, // non-compliant, fight me
 		OriginPatterns: s.HTTPOrigins,
 	})
 	if err != nil {