diff --git a/lib/config/index.js b/lib/config/index.js
index c1005b0..b848096 100644
--- a/lib/config/index.js
+++ b/lib/config/index.js
@@ -101,6 +101,10 @@ config.serverURL = (function getserverurl () {
return url
})()
+if (config.serverURL === '') {
+ logger.warn('Neither \'domain\' nor \'CMD_DOMAIN\' is configured. This can cause issues with various components.\nHint: Make sure \'protocolUseSSL\' and \'urlAddPort\' or \'CMD_PROTOCOL_USESSL\' and \'CMD_URL_ADDPORT\' are configured properly.')
+}
+
config.Environment = Environment
// auth method
diff --git a/package.json b/package.json
index 6d2f35f..cf1e706 100644
--- a/package.json
+++ b/package.json
@@ -115,8 +115,8 @@
"sequelize": "^3.28.0",
"sequelize-cli": "^2.5.1",
"shortid": "2.2.8",
- "socket.io": "~2.0.4",
- "socket.io-client": "~2.0.4",
+ "socket.io": "~2.1.1",
+ "socket.io-client": "~2.1.1",
"spin.js": "^2.3.2",
"sqlite3": "^4.0.1",
"store": "^2.0.12",
diff --git a/public/views/codimd/foot.ejs b/public/views/codimd/foot.ejs
index 9b1c68d..3a7fefd 100644
--- a/public/views/codimd/foot.ejs
+++ b/public/views/codimd/foot.ejs
@@ -12,7 +12,7 @@
-
+