How to do Port forwarding from 443 to 80 ?

Quite likely, somewhere in all the redirects, you have a redirect that discards the PATH of the URL.

Example, if the logout page has link: http://example.com:8080/logout.php

and your 8080 VIP sends a redirect to https://example.com , then the logout will not work, because /logout.php has been discarded in the redirect.