I. For Confluence only: Disable anti clickjacking protection and enable protection in Kantega SSO
Steps to prepare Confluence
Follow this guide to disable the built-in anti clickjacking protection in Confluence: https://confluence.atlassian.com/confkb/confluence-page-does-not-display-in-an-iframe-827335781.html
Turn on Content Security Policy switch to give similar protection, but allowing for Confluence to be loaded in Microsoft Teams.
The Content Security Policy switch is only available for Confluence. For other products this is included in the Enable Microsoft Teams SSO login switch.