Azure frontdoor

When more than 1 web app sits behind the front door however, I was seeing the page not rendering correctly, giving different versions of the page. Also when the authentication and authorisation is enabled, the frontdoor URL is exposing or redirecting to the backend pool (webapps) URL. Also when the authentication and authorisation is enabled, the frontdoor URL is exposing or redirecting to the backend pool (webapps) URL.