We have also
- Upgraded Apache to 2.4.27
- Created a new Confluence On-Premise SAML Application in Okta
- Updated [confluence_webdir]/WEB-INF/classes/seraph-config.xml as required
- Eliminated 'base url' errors from the Confluence Admin GUI
- Disabled Collaborative Editing
We host Confleunce behind mod_proxy.
As expected;
- The proxy appears to be working via http / https
- The public facing Web content is accessible
- We can manually log into Confluence and create new pages
On attempt to SSO from Okta;
- The user is not logged in (unexpected)
- Then redirected to the public facing Confluence home page (as expected if not logged in)
We are open to troubleshooting recommendations / process of elimination
Feel free to request any info from us to assist
Thanks in advance