Non-Image formats 404'ing using ImageFlow Server Deployed to Azure Windows App Service

We have a aspnetcore 6 web app using ImageFlow Dotnet Server deployed as a windows app service to serve files and resize images from azure blob storage. Also have hybrid caching implemented. It works well enough for image files(.jpg, .png) but any non-image format, e.g, SVG, PDF, 404s. These files definitely exist in blob storage. Is there some configuration that must be set in, say, ```app.UseImageflow``` to enable all files to be served. It definitely is not a MIME type issue with the app service. The static web server can serve these files up.

Reproduce the ASP.NET Core 6 app using ImageFlow Dotnet Server, Azure Blob Storage, hybrid caching, and Azure Windows App Service, comparing image requests with SVG and PDF requests. Inspect the UseImageflow configuration and request path; done means existing non-image files are served instead of returning 404.

Written by the indexing model from the issue text.