From f1140b6b12e5064506b307cdf5148103579da42c Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 12 Aug 2022 11:08:14 +0200
Subject: [PATCH] server: Maintain compatibility with socket.io v2.

---
 server/server.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/server/server.js b/server/server.js
index 4797fd9..edc8a3c 100644
--- a/server/server.js
+++ b/server/server.js
@@ -914,7 +914,8 @@ var server = http.createServer(function(request, response) {
 var io = socketio(server, {
   'cors': {
     'origin': '*:*',
-  }
+  },
+  'allowEIO3': true
 });
 
 io.on('connection', function(socket) {