Hm. mod_security is not listed as an enabled Apache module. But just to be sure I added:
<IfModule mod_security.c>
SecFilterInheritance Off
</IfModule>
to the .htaccess file in the root directory for the site. It didn’t fix the problem. Also the image upload and other Ajax functions seem to be working ok.
When I bring up the Error Console in Firefox and click on the button to bring up the color picker I get:
Warning: Error in parsing value for property 'top'. Declaration dropped.
Source File: https://www.site.com/wp-admin/themes.php?page=functions.php&saved=true
Line: 0
I’m not sure if that is relevant or not.