diff --git a/README.md b/README.md
index 700b818..c3122ac 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ WelsonJS - Build a Windows desktop apps with JavaScript, HTML, and CSS based on
 ![Structure](app/assets/img/structure.png)
 
 ## Specifications
-- ES6(ECMAScript 6, Optional), ES5(ECMAScript 5), JSON compatibility
+- ES6(ECMAScript 6), ES5(ECMAScript 5), JSON compatibility
   - [github:es-shims/es5-shim](https://github.com/es-shims/es5-shim)
   - [github:paulmillr/es6-shim](https://github.com/paulmillr/es6-shim)
   - [github:bestiejs/json3](https://github.com/bestiejs/json3)
diff --git a/app.js b/app.js
index b146ddc..004c2aa 100644
--- a/app.js
+++ b/app.js
@@ -155,13 +155,12 @@ if (typeof(CreateObject) !== "function") {
 
 /**
  * @FN {string} The name of the file.
- * @escapeToGlobal {bool} Specifies the scope of code to execute.
  */
-function _require(FN, escapeToGlobal) {
+function require(FN) {
     var cache = require.__cache = require.__cache || {};
+	var global = require.__global;
     if (FN.substr(FN.length - 3) !== '.js') FN += ".js";
     if (cache[FN]) return cache[FN];
-    if (typeof(escapeToGlobal) != "boolean") escapeToGlobal = true;
 
     // get directory name
     var getDirName = function(path) {
@@ -201,13 +200,11 @@ function _require(FN, escapeToGlobal) {
     }
 
     // make function
-    if (!escapeToGlobal) {
-        T = "(function(global){var module=new ModuleObject();return(function(exports,require,module,__filename,__dirname){"
-            + '"use strict";'
-            + T
-            + "\n\nreturn module.exports})(module.exports,global.require,module,__filename,__dirname)})(this);\n\n////@ sourceURL="
-            + FN;
-    }
+	T = "(function(global){var module=new ModuleObject();return(function(exports,require,module,__filename,__dirname){"
+		+ '"use strict";'
+		+ T
+		+ "\n\nreturn module.exports})(module.exports,global.require,module,__filename,__dirname)})(global);\n\n////@ sourceURL="
+		+ FN;
 
     // execute function
     try {
@@ -223,13 +220,7 @@ function _require(FN, escapeToGlobal) {
 
     return cache[FN];
 }
-
-/**
- * @FN {string} The name of the file.
- */
-function require(FN) {
-    return _require(FN, false);
-}
+require.__global = this;
 
 /////////////////////////////////////////////////////////////////////////////////
 // Load script, and call app.main()
@@ -303,7 +294,7 @@ var ModuleObject = function() {
 //_require("app/assets/js/json2");
 
 // JSON 3 was a JSON polyfill for older JavaScript platforms
-_require("app/assets/js/json3-3.3.2.min");
+require("app/assets/js/json3-3.3.2.min");
 
 // Babel Polyfill (7.12.1)
 require("app/assets/js/babel-polyfill-7.12.1.edited");
@@ -317,8 +308,8 @@ var squel = require("app/assets/js/squel-basic-5.13.0.hiddentao-afa1cb5.edited")
 
 // (Optional)
 // ECMAScript 6 compatibility shims for legacy JS engines
-//require("app/assets/js/es6-shim-0.35.6.ljharb-62dbad5");
-//require("app/assets/js/es6-sham.0.35.6.ljharb-62dbad5");
+require("app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.edited");
+require("app/assets/js/es6-sham.0.35.6.ljharb-62dbad5");
 
 // Dive into entrypoint 
 function main() {
diff --git a/app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.js b/app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.edited.js
similarity index 99%
rename from app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.js
rename to app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.edited.js
index a754b81..8f0cdb7 100644
--- a/app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.js
+++ b/app/assets/js/es6-shim-0.35.6.ljharb-62dbad5.edited.js
@@ -69,7 +69,7 @@
   var _some = Function.call.bind(Array.prototype.some);
 
   var defineProperty = function (object, name, value, force) {
-    if (!force && name in object) { return; }
+    if (!object || (!force && name in object)) { return; }
     if (supportsDescriptors) {
       Object.defineProperty(object, name, {
         configurable: true,
diff --git a/app/assets/js/webreflection-ie8-0.8.1.min.js b/app/assets/js/ie8-0.8.1.min.js
similarity index 100%
rename from app/assets/js/webreflection-ie8-0.8.1.min.js
rename to app/assets/js/ie8-0.8.1.min.js
diff --git a/lib/oldbrowser.js b/lib/oldbrowser.js
index 1875745..5f560d4 100644
--- a/lib/oldbrowser.js
+++ b/lib/oldbrowser.js
@@ -198,7 +198,7 @@ exports.start = function(callback) {
 
     // load jQuery and cross browsing libraries
     if (IEVersion == 8) {
-        exports.addScript("app/assets/css/jquery/webreflection-ie8-0.8.1.min.js");
+        exports.addScript("app/assets/css/jquery/ie8-0.8.1.min.js");
     }
     exports.addScript("app/assets/js/html5shiv-printshiv-3.7.3.min.js");
     if (IEVersion < 9) {