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Header and Footer Not Loading, Prevents Styles and Scripts from Loading
I recently upgraded from osTicket 1.8 to 1.9 today. I've been having this weird issue where osTicket is failing to load the header and footer on the various admin pages. (I'm assuming it's the header.inc.php and footer.inc.php files.) Sometimes, the pages load fine but sometimes they don't load which means the styles and scripts needed for the page don't load as well. If I want a few moments and reload/refresh the page, then everything loads without any issue.
I've checked my server log to see if there are any errors but everything checks out okay. I enabled the displaying of PHP errors via .htaccess and could not get it to display any errors when the pages didn't render properly. I also deleted all the files off the server and did a fresh upload of 1.9 (with two different FTP clients), but that didn't resolve the issue. I didn't have this issue with 1.8. My site is hosted on Media Temple, whom I haven't had any issues with (yet).
If you need additional details or information to help troubleshooting this issue, please let me know.
osTicket Version: v1.9.0-3-gae5e138 (ae5e138)
Server Software: Apache/2.2.22
PHP Version: 5.3.27
MySQL Version: 5.1.63