When user guest create a ticket and paste any HTML content in ticket issue details and hit Create Ticket, they get Forbidden error (see file). All permissions on server are ok. I do the exact copy/paste in Back-end with an internal note and it passI've aslo tested same thing from an standard install of 1.10 with cPanel software install and it give the same result. There is something with page validator or code parsing of this field. Inserting an image to the same thing.My config :osTicket Version v1.10 (901e5ea) — Up to dateWeb Server Software ApacheMySQL Version 10.1.18PHP Version 5.4.45phpMail functions