'unauthorized' event handler

The example doesn't give any notification on an Unauthorised error.
It would be nice to log something on the server too, but I don't see how to do this.

example/socketsio-auth0-sample/views/index.jade

@@ -46,8 +46,12 @@ block content
 
         function openChat() {
             var socket = io();
-            socket.on('connect', function () {
+            socket
-                socket.on('authenticated', function () {
+                .on('connect', function (msg) {
+                    console.log("connected");
+                    socket.emit('authenticate', {token: userToken}); // send the jwt
+                })
+                .on('authenticated', function () {
                     //Do
                     $('#login').hide();
                     $('#chat').show();
@@ -56,10 +60,13 @@ block content
                         $('#m').val('');
                         return false;
                     });
-                    socket.on('chat message', function (msg) {
+                })
+                .on('unauthorized', function(msg){
+                    console.log("unauthorized: " + JSON.stringify(msg.data));
+                    throw new Error(msg.data.type);
+                })
+                .on('chat message', function (msg) {
                     console.log("msg");
                     $('#messages').append($('<li>').text(msg));
                 });
-                }).emit('authenticate', {token: userToken}); // send the jwt
-            })
         };