I do have an audio angular app with Microsoft dotnet core 6 backend and many audio files accesses via virtual directory. I can access any files except files with .flac extension (I have added .flac and audio/flac to mime type file in IIS). The error code is 404. However, if I change the file extension from .flac to .fla then it works and I can play it as Flac file. How can I tell the iis to accept/ access the .flac file? I am running windows 10 64bit with IIS.
Thanks.