Form and secure site issues

[Roy]

I have created form on apache server and all works well. Data collected and
confirmation page works well. When I attempt to use same page on secure
site, no re-directs and no data collection. URL is http://cathywheat.com.
Contest order is page that works and Secure link does not. Page displays
properly, but no form function. Frontpage Extensions are correct (as per
host) Host support suggests adding DirectoryIndex to .htaccess for .shtml.
No clue what that means or how to attempt it. Anyone have any ideas?

 

[Ronx]

Have the extensions been installed on port 443 as well as port 80?
Installation on Port 80 is normal and used for non-secure pages
(http://) Port 443 is for secure pages (https://) . Forms using
extensions on https:// will not function unless this is done.