Izmjenjena struktura, dodan backand

web/node_modules/react/lib/canDefineProperty.js

@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * 
+ */
+
+'use strict';
+
+var canDefineProperty = false;
+if (process.env.NODE_ENV !== 'production') {
+  try {
+    // $FlowFixMe https://github.com/facebook/flow/issues/285
+    Object.defineProperty({}, 'x', { get: function () {} });
+    canDefineProperty = true;
+  } catch (x) {
+    // IE will fail on defineProperty
+  }
+}
+
+module.exports = canDefineProperty;