Redirect ACL configured on switch shouldn't contain "50 permit tcp any any eq 8443"
This the portal port. It has nothing to do with http and https redirection.
ip access-list extended redirect
deny ip any host <ISE ip address>
permit TCP any any eq www
permit TCP any any eq 443
http://www.cisco.com/c/en/us/support/docs/security/identity-services-engine/113362-config-web-auth-ise-00.html
You can keep this above link.
Regards
Gagan