browser.js

var dom = require("jsdom/jsdom/level2/core").dom.level2.core;
var browser = require("jsdom/jsdom/browser");

exports.createWindow = function() {
  var bom = browser.browserAugmentation(dom);
  var window = browser.windowAugmentation(dom);
  for (var key in bom) window[key] = bom[key];
  return window;
}