node_modules/pomelo/template/web-server/public/js/lib/local/boot/index.js

  var Emitter = require('emitter');
  window.EventEmitter = Emitter;

  var protocol = require('pomelo-protocol');
  window.Protocol = protocol;
  
  var protobuf = require('pomelo-protobuf');
  window.protobuf = protobuf;
  
  var pomelo = require('pomelo-jsclient-websocket');
  window.pomelo = pomelo;