socket.io is not working with hapijs

'welcome' is not displayed when going to localhost:8000. I've tried everything. Help people, what am I doing wrong?

path = require 'path'

Hapi = require 'hapi'
server = new Hapi.Server()

server.connection
  host: 'localhost'
  port: process.env.PORT || 8000
  routes:
    cors: true

server.views
  engines:
    jade: require 'jade'
  path: path.join __dirname, 'templates'

io = require('socket.io')(server.listener)
io.on 'connection', (socket) ->
  console.log 'welcome'

server.register require('./routes/plugins'), (err) ->
  throw err if err
  server.start(->
    console.log 'Server running at: ' + server.info.uri
  )