Fix for #8222

Author: 0m3r

lib/web/mage/collapsible.js

@@ -100,7 +100,8 @@ define([
         _processState: function () {
             var anchor = window.location.hash,
                 isValid = $.mage.isValidSelector(anchor),
-                urlPath = window.location.pathname.replace('.', '');
+                urlPath = window.location.pathname.replace(/\./g, ''),
+                state;
 
             this.stateKey = encodeURIComponent(urlPath + this.element.attr("id"));