# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1779794819 -3600
# Node ID 8d726f5d044a44cf14ee89269a41dfd077aeeacb
# Parent  159047a453f218fc4a1ed47a2a5e19fd29bfa55d
net.websocket: Fix traceback in client if server doesn't respond with Connection header

diff -r 159047a453f2 -r 8d726f5d044a net/websocket.lua
--- a/net/websocket.lua	Tue May 26 11:52:00 2026 +0100
+++ b/net/websocket.lua	Tue May 26 12:26:59 2026 +0100
@@ -240,7 +240,7 @@
 		insecure = ex.insecure;
 	}, function(b, c, r, http_req)
 		if c ~= 101
-		   or r.headers["connection"]:lower() ~= "upgrade"
+		   or (r.headers["connection"] or ""):lower() ~= "upgrade"
 		   or r.headers["upgrade"] ~= "websocket"
 		   or r.headers["sec-websocket-accept"] ~= base64.encode(sha1(key .. "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"))
 		   or (protocol and not protocol[r.headers["sec-websocket-protocol"]])