Breadcrumbs and home button navigation not working in service portalIssue When clicking a breadcrumb or home button on the portal nothing happens and a browser console error is thrown. Error: TypeError: Cannot read property 'isUserModified' of undefinedat checkForDirtyForms (js_includes_sp.jsx?v=07-10-2019_1243&lp=Wed_Aug_21_01_30_53_PDT_2019&c=25_498:formatted:70113)at js_includes_sp.jsx?v=07-10-2019_1243&lp=Wed_Aug_21_01_30_53_PDT_2019&c=25_498:formatted:70121at Scope.$broadcast (js_includes_sp_libs.jsx?v=07-10-2019_1243&lp=Wed_Aug_21_01_30_53_PDT_2019&c=25_498:14922)CauseA UI Script loaded into that portal op page has edited the array prototype with a custom method and that causers the error. In one case the cause was a script RITA.js and the method added was '_arrayContains'ResolutionDisable or edit the UI Script so it does not edit the Array prototype.