Socket.IO issue with control chars

I am implementing an application that uses websockets and a console accessed via Telnet. There is a communication between the connection established via websockets and the console. I am experiencing a weird issue:

• If I send a string constant to an established socket when something is entered in the console it works ok.
• If I send a string received from the console scope It seems to open a new socket (not sure) because in the debug log I see it and in the browser side (websockets) it alerts me of a new connection.
• If I send a local string (instead of the one received from the other scope) it's sent correctly. (commented line: client.send(message) )

I share here the nodeJS code, take into account that this is now a test app so it's assumed only one socket and websockets connection:

// Sample based on: http://elegantcode.com/2011/05/04/taking-baby-steps-with-node-js-websockets/
// Changed for sockets.io 6.x => 7.x


var events = require('events');
var eventEmitter = new events.EventEmitter();

var http = require('http');
var socketIO = require('socket.io');
var static = require('node-static');

var port = 2000;

var clientFiles = new static.Server('./client');

var httpServer = http.createServer(
    function(request, response) {
        request.addListener('end', function() { 
            clientFiles.serve(request, response);
       });
    })

httpServer.listen(port);
console.log("Server running at port: " + port);

var io = require('socket.io').listen(httpServer);

var webSocket = io.sockets;

webSocket.on('connection', function(client) {
    client.send('Please enter a user name ...');
    var userName;

    eventEmitter.on('someOccurence', function(message) {
        console.log("Received: " + message);
        client.send('Line Received');
        var s = 'popo';
        client.send(s);
        //client.send(message);
    });


    client.on('message', function(message) {
        console.log(mess