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NGINX blank popup and 404 AJAX errors after upgrade -- worked on old Apache server.

osTicket: 1.18.2 PHP: 8.3 Checked:

NGINX requires manual rewrite rules for osTicket to function correctly. The default NGINX config does not support PATH_INFO-based URL routing used by osTicket's AJAX endpoints. Configure NGINX with the osTicket-specific location blocks or migrate to Apache/LiteSpeed/IIS which support osTicket's .htaccess rules natively.

Originally sourced from forum.osticket.com . osFAQ.org summarises community knowledge for quick reference.

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