diff -ruN SOGo-4.3.0-orig/UI/Templates/UIxPageFrame.wox SOGo-4.3.0/UI/Templates/UIxPageFrame.wox --- SOGo-4.3.0-orig/UI/Templates/UIxPageFrame.wox 2020-01-21 16:19:39.000000000 +0100 +++ SOGo-4.3.0/UI/Templates/UIxPageFrame.wox 2020-04-02 14:16:57.000000000 +0200 @@ -35,6 +35,7 @@ + diff -ruN SOGo-4.3.0-orig/UI/WebServerResources/js/prevent-bfcache.js SOGo-4.3.0/UI/WebServerResources/js/prevent-bfcache.js --- SOGo-4.3.0-orig/UI/WebServerResources/js/prevent-bfcache.js 1970-01-01 01:00:00.000000000 +0100 +++ SOGo-4.3.0/UI/WebServerResources/js/prevent-bfcache.js 2020-04-02 14:35:36.000000000 +0200 @@ -0,0 +1,10 @@ +/** + * Prevent bfcache when logged of. + */ +(function () { + window.onpageshow = function(event) { + if (document.cookie.indexOf('XSRF-TOKEN') == -1 && event.persisted) { + window.location.reload(); + } + }; +})();