Seamless UX when using a Sharepoint URL in a TAB in Teams
Issue: Customer has a URL tab in one of their Teams. This URL directs them to a SharePoint Communications site, when trying to access the tab via the desktop client they are prompted with a Login prompt where as if they access the TAB via the browser they are not.
Assessment: Expected Behavior.
Resolution: When access the tab in the browser credentials are already cached and therefore authentication is silently passed allowing users to be directed straight to the target SharePoint site. Conversely when clicking on the TAB in the desktop client auth tokens have not been passed so SharePoint will request the user to log in. Once the user inputs their credentials they are able to access the resource. Tokens are stored in Teams MT for up to an hour and then they expire, prompting a refresh.