update window.js

js/global/window.js

@@ -1,7 +1,7 @@
 if (typeof define === "function" && define.amd)
     define(function () {
-        return window || new (eval("require('jsdom')")('')).window;
+        return typeof window !== "undefined" ? window : new (eval("require('jsdom').JSDOM"))('').window;
     });
 else if (typeof exports === "object")
-    module.exports = window || new (eval("require('jsdom')")('')).window;
+    module.exports = typeof window !== "undefined" ? window : new (eval("require('jsdom').JSDOM"))('').window;