Close event not fired

index.js

'use strict';

var server = require('http').createServer();
var net = require('net');

function write(port, host) {
  this.write([
    'GET ws://' + host + ':' + port + '/ HTTP/1.1',
    'Host: ' + host,
    'Upgrade: websocket',
    'Connection: Upgrade',
    'Sec-WebSocket-Key: rfeGe1izPRq2JyonWunAQw==',
    'Sec-WebSocket-Version: 13',
    'Origin: http://' + host +':' + port,
    '',
    ''
  ].join('\r\n'));

  this.end();
  server.close();
}

server.on('close', function close() {
  console.log('bye');
});

server.on('listening', function listening() {
  var socket = new net.Socket();
  var bound = server.address();

  socket.connect(bound.port, bound.address);
  socket.on('connect', write.bind(socket, bound.port, bound.address));
  socket.on('data', function () { socket.destroy(); });
});

server.on('upgrade', function upgrade(req, socket, head) {
  setTimeout(function send() {
    socket.write([
      'HTTP/1.1 101 Switching Protocols',
      'Upgrade: websocket',
      'Connection: Upgrade',
      'Sec-WebSocket-Accept: prdBmM6el7NzNgJBcdmWum5mTZc=',
      '',
      ''
    ].join('\r\n'));
  }, 1000);
});

server.listen(0, '127.0.0.1');