Izmjenjena struktura, dodan backand

web/node_modules/es5-ext/reg-exp/valid-reg-exp.js

@@ -0,0 +1,8 @@
+"use strict";
+
+var isRegExp = require("./is-reg-exp");
+
+module.exports = function (value) {
+	if (!isRegExp(value)) throw new TypeError(value + " is not a RegExp object");
+	return value;
+};