.NET 9 Web App with YARP Proxy in virtual directories

[Scorpoon]

I've read that the YARP Proxy can't handle requests when the app containing the proxy is in a virtual directory, I just want to know if what I've read is correct / if it would work with the below structure which I have in mind.
Purpose of my YARP Proxy is to migrate from .NET 4.8 to .NET 9 and proxy requests through the .NET 9 web app to the .NET 4.8 web app.

Our current structure is (Bold entries are where I would place the .NET 9 web app, even if it's hierarchically not "in front" of the .NET 4.8 web app):

• Website Customer 1 Production .NET 4.8
  • Production .NET 9 web app
  • RC .NET 4.8 web app
    • RC .NET 9 web app
  • Test .NET 4.8 web app
    • Test .NET 9 web app
• Website Customer 2 Production .NET 4.8
  • Production .NET 9 web app
  • RC .NET 4.8 web app
    • RC .NET 9 web app
  • Test .NET 4.8 web app
    • Test .NET 9 web app
• etc.

Would it make any difference if the .NET 9 web app is a level above the .NET 4.8 web app?

Any advices how it could be done better are also welcome 😊

Thanks for your help!

[Scorpoon]

Resolved by adding the "AllowAutoRedirect" option to the proxy:

_ = builder.Services.AddReverseProxy()
            .LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"))
            .ConfigureHttpClient((_, handler) => handler.AllowAutoRedirect = true);