I recently installed the Azure AD Application Proxy connector on my company's internal server using Microsoft's tutorial. I have a Blazor application configured to use Azure AD authentication setup on this server, using all the default Microsoft Identity authentication code when initially creating the Blazor app, all I did was fill out the app settings for my tenant/client IDs. I have configured the Enterprise Application within Azure for this app to use the newly created application proxy with the pre-authentication set to passthrough. For simplicity's sake, let's say my internal URL for my web app is "myapp.domain.local" and my external URL (which is the default msappproxy URL) is "myapp-company.msappproxy.net". I have also configured the authentication section of the App Registration to use the following redirect URIs (my app's callback path is /signin-oidc): https://myapp.domain.local/signin-oidc https://myapp-company.msappproxy.net/signin-oidc
The problem I am encountering is when I try to access my app from the browser using the app proxy URL (myapp-company.msappproxy.net), the authentication configured on the app (not the pre-authentication for the app proxy) seems to be redirecting back to the internal URL (myapp.domain.local), rather than using the proxy URL that I had originally used to access the web app. Obviously this will not work when connected to a device off of our internal network. I do not want to disable authentication within my app and enable Azure AD authentication for the pre-authentication of the application proxy. I simply want the app's authentication to redirect to the app proxy's URL instead. Is there any way to achieve this?
