I doubt others are having the same issue since it's your modification.The loading window is triggered by: https://github.com/osTicket/osTicket/blob/55dc25ace736baeaf224ee608cfabc0218022036/js/osticket.js#L46-L50To hide the overlay use this command: $('#overlay, #loading').hide();And you may also want to add this $(window).bind('beforeunload', function(e) { return __("Are you sure you want to leave? Any changes or info you've entered will be discarded!"); });Since it's being removed in the process of showing the loading window.