So siehts ganz gut aus !

node_modules/es5-ext/reg-exp/#/is-sticky.js

@@ -0,0 +1,9 @@
+"use strict";
+
+var validRegExp = require("../valid-reg-exp")
+
+  , re = /\/[a-xz]*y[a-xz]*$/;
+
+module.exports = function () {
+	return Boolean(String(validRegExp(this)).match(re));
+};