From 1d05d6c76bdb4ac8be5d217a9875955d887c6046 Mon Sep 17 00:00:00 2001
From: wood1986 <5212215+wood1986@users.noreply.github.com>
Date: Thu, 15 Aug 2019 22:02:41 -0700
Subject: [PATCH] fix: Cannot read property 'headers' of null at
 Server.socket.on

---
 lib/servers/SockJSServer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/servers/SockJSServer.js b/lib/servers/SockJSServer.js
index 782b325a48..c12913a5a7 100644
--- a/lib/servers/SockJSServer.js
+++ b/lib/servers/SockJSServer.js
@@ -64,7 +64,7 @@ module.exports = class SockJSServer extends BaseServer {
   // f should be passed the resulting connection and the connection headers
   onConnection(f) {
     this.socket.on('connection', (connection) => {
-      f(connection, connection.headers);
+      f(connection, connection ? connection.headers : null);
     });
   }