Hi I'm trying to use dynamic namespace to create them on demand. It's working except that I get duplicate or more client for some reason

Server side :

io.of("/" + group ).on("connection", function(socket_group) { 
                socket_group.groupId = group;
                socket_group.on("infos", function(){
                    console.log("on the group  !");
                })

                socket_group.on('list', function () {
                    Urls.find({'group' : '...'}).sort({ '_id' : -1 }).limit(10).exec(function(err, data){
                        socket_group.emit('links', data);
                    });
                })  
                [...]
                })

Client Side :

socket.emit('list', { ... });

On the client side only one command is sent but the server is always responding with 2 or more responses. Every time I close/open my app the response is incremented.

Thanks if you find out.