There is the (now closed) RFC-35: Custom Domains Support For Confluence - #42 by JohnHooper , however in this discussion Atlassian says:
So I’m not aware of Atlassian guidance how vendors should handle the CSP for custom domains.
There is the (now closed) RFC-35: Custom Domains Support For Confluence - #42 by JohnHooper , however in this discussion Atlassian says:
So I’m not aware of Atlassian guidance how vendors should handle the CSP for custom domains.