Channel for Power BI shows this error in the Developer Tools Console: refused to display ... in a frame because it set 'X-Frame-Options' to 'sameorigin'.
Release : 16.0.1
Component : Clarity MUX Blueprints and Administration
Based on the error, we are getting a header returned from power BI.
Ask your Power BI team if they can not send that header or if there is a different URL that should be used.