javascript - client connecting twice to server, Socket.io -

i trying log username of logged in users connecting socket.io passport.js using passport.socketio. successful logs username twice , after trying , searching fair amount of time stuck.

the code sections follows:

the server code:

var server = http.createserver(app); var io = require('socket.io')(server);  io.use(passportsocketio.authorize({   cookieparser: cookieparser,       // same middleware registred in express   key:          'connect.sid',       // name of cookie express stores session_id   secret:       'hello',    // session_secret parse cookie   store:        new (require("connect-mongo")(esession))({     url: "mongodb://localhost/local"   }),        // need use sessionstore. no memorystore please   success:      onauthorizesuccess,  // *optional* callback on success - read more below   fail:         onauthorizefail,     // *optional* callback on fail/error - read more below }));  function onauthorizesuccess(data, accept){   console.log('successful connection socket.io');   accept(null, true);   accept(); }  function onauthorizefail(data, message, error, accept){   if(error)     throw new error(message);   console.log('failed connection socket.io:', message);    // use callback log of our failed connections.   accept(null, false);    // or    // if use socket.io@1.x callback looks different   // if don't want accept connection   if(error)     accept(new error(message));   // error sent user special error-package   // see: http://socket.io/docs/client-api/#socket > error-object } io.on('connection', function(socket) {   var userid = socket.request.user;   console.log(userid.tg+ " has connected")  });  // catch 404 , forward error handler app.use(function(req, res, next) {   var err = new error('not found');   err.status = 404;   next(err); });  var port = normalizeport(process.env.port || '3000'); app.set('port', port); server.listen(port); 

the client code

<script src="http://code.jquery.com/jquery-1.11.1.js"></script> <script src="/socket.io/socket.io.js"></script> <script>     var socket = io.connect(); </script> 

the output follows:

successful connection socket.io username has connected username has connected 

i unsure why outputting twice appreciated. relatively new node.js don't believe it's passport part causing it, stuck might not have best idea.

thanks in advanced

edit: tried latest version of socket , checked own version both seem latest versions, make sure updated client code to:

<script src="http://code.jquery.com/jquery-1.11.1.js"></script> <script src="https://cdn.socket.io/socket.io-1.3.2.js"></script> <script>     var socket = io.connect(); </script> 

the issue persists

i found problem guess own stupidity,

i accepting connection twice upon successful authorization. hence registering twice correction should be:

function onauthorizesuccess(data, accept){   console.log('successful connection socket.io');   //accept(null, true); -> remove line   accept(); }