So siehts ganz gut aus !

node_modules/es5-ext/string/#/case-insensitive-compare.js

@@ -0,0 +1,7 @@
+"use strict";
+
+var toLowerCase = String.prototype.toLowerCase;
+
+module.exports = function (other) {
+	return toLowerCase.call(this).localeCompare(toLowerCase.call(String(other)));
+};