Node.js Cookie is not transmitted - node.js

Question

I'm use node.js + express + socket.io.
But when I'm tring to use cookies - I'm getting an error
no cookie transmitted
I have view all answers on this site. But don't find solution.
Here is my code of server:
// Require server config
var server_config = require('./config.json');
// Require express
var express = require("express");
var MemoryStore = express.session.MemoryStore;
var app = express();
var sessionStore = new MemoryStore();
// Configure app
app.configure(function () {
app.use(express.cookieParser());
app.use(express.session({secret: 'secret', key: 'express.sid'}));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(__dirname));
});
// Require socket IO and create server
var io = require('socket.io').listen(app.listen(server_config.port));
var history = {};
history.rooms = [];
var parseCookie = require('express/node_modules/cookie').parse;
io.set('authorization', function (data, accept) {
// check if there's a cookie header
if (data.headers.cookie) {
// if there is, parse the cookie
data.cookie = parseCookie(data.headers.cookie);
// note that you will need to use the same key to grad the
// session id, as you specified in the Express setup.
data.sessionID = data.cookie['express.sid'];
data.getSession = function (cb) {
sessionStore.get(data.sessionID, function (err, session) {
if (!err && !session) err = 'No session';
data.session = session;
cb(err, session);
});
}
} else {
// if there isn't, turn down the connection with a message
// and leave the function.
return accept('No cookie transmitted.', false);
}
// accept the incoming connection
accept(null, true);
});
// On connection actions
io.sockets.on('connection', function (socket) {
socket.handshake.getSession(function (error, session) {
console.log(error);
});
// Draw action
socket.on('drawClick', function (data) {
// Push element to the history
/*if (history.rooms[socket.room])
history.rooms[socket.room].push(data);*/
socket.broadcast.to(socket.room).emit('draw', {socket_id: socket.id, shape: data.shape, canvas_id: data.canvas_id, history: data.history});
});
// Subscribe to a room
socket.on('subscribe', function (data) {
socket.room = data.room;
socket.join(socket.room);
// If room history does not exists - create it
/*if (!history.rooms[socket.room])
history.rooms[socket.room] = [];
// If history exists - draw it
else
io.sockets.socket(socket.id).emit('history', {history: history.rooms[socket.room]});*/
});
// Note that it is not necessary to call socket.leave() during the disconnect event.
// This will happen automatically. Empty rooms will be automatically pruned so there is no need to manually remove them.
socket.on('unsubscribe', function (data) {
socket.leave(socket.room);
});
});
Here how I init on client:
io.connect(myprepa.config.site_url + ":" + myprepa.config.port);
Please help.