Error: Valid CSRF Token RequiredUsed on: osTicket v1.9.12System info where it was used: NginX with Varnish cache and .htaccess supportFix: 1) Create a .htacess file2)Type in the following:Header set Set-Cookie "VC-NoCache=1; max-age=900; path=/"Header set VC-NoCache "1"3)Save it and ftp it to your support site ie: support.mydomain.com or www.mydomain.com/support/What does this do?It bypasses the Varnish cache on the entire directory. I try to just use it with different tweaks on the /scp directory but it wasn't very effective. My conclusion was that it was better this way because there is no need to cache a ticket system and it might cause issues down the road because it was caching.Works on Chrome, Firefox, and IE( IE never presented this issue only Chrome and FireFox)Cheers!PS: This is what worked for my server with that setup. Your scenario might be different and this might not work for you.
