We have a 10.7 enterprise portal that is serving reference layers to a power BI dashboard by way of arcgis for power bi. When we try to open the map via teams, it asks for credentials but then we get a blank page like this with a really long token ttps://lacdn.arcgis.com/powerbi/2021.2.95/oauth-callback.html#access_token=8VKoOMQ3ETVRau3lIjYj_y8x........................
I can open the dash in via a web page through app.powerbi.com and log in with my SAML credentials and everything works. I have allowed CORS in portal security settings..
What gives?