diff --git a/src/app.js b/src/app.js
index 8c5d2e7..0c0fa4b 100644
--- a/src/app.js
+++ b/src/app.js
@@ -24,7 +24,7 @@ const sessionMiddleware = session({
   saveUninitialized: true
 });
 
-var rooms = [];
+let rooms = [];
 
 io.use(function(socket, next) {
   sessionMiddleware(socket.request, socket.request.res, next);
@@ -44,9 +44,7 @@ function generateNewRoom(req, res, id) {
   console.log('generating new room');
 
   room.on('empty', function() {
-    console.log('room empty', room._id);
     rooms = _.without(rooms, _.findWhere(rooms, {_id: room._id}));
-
   });
 
   return res.redirect(`/${id}`);
@@ -64,7 +62,7 @@ app.get('/loaderio-6f94612a3fa71ff98b23eecfcca2de6c.html', (req, res) => {
 app.get('/:roomId', (req, res) => {
   const roomId = req.params.roomId || false;
 
-  let roomExists = _.findWhere(rooms, {_id: roomId}) ? true : false;
+  let roomExists = _.findWhere(rooms, {_id: roomId}) || false;
 
   if (roomExists) {
     return res.render('index', {username: shortid.generate()});
diff --git a/src/public/main.js b/src/public/main.js
index 0b8fa70..fb0e024 100644
--- a/src/public/main.js
+++ b/src/public/main.js
@@ -1,3 +1,5 @@
+var fs = window.RequestFileSystem || window.webkitRequestFileSystem;
+
 $(function() {
   var FADE_TIME = 150; // ms
   var TYPING_TIMER_LENGTH = 400; // ms
@@ -41,6 +43,16 @@ $(function() {
   // Sets the client's username
   function setUsername () {
     username = window.username;
+    // warn not incognitor
+    if (!fs) {
+      console.log('no fs');
+    } else {
+      fs(window.TEMPORARY,
+         100,
+         log.bind(log, "!!WARNING!! : Your browser is not in incognito mode! : !!WARNING!!"),
+         log.bind(log, "Your browser is in incognito mode."));
+    }
+
     // If the username is valid
     if (username) {
       $chatPage.show();