Owin Default Files

I just came around the problem that I wanted to serve static files via Owin. Therefore I added the NuGet package Microsoft.Owin.StaticFiles, and added the following to my Startup class:

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app.UseStaticFiles(); app.UseDefaultFiles(new DefaultFilesOptions   {     DefaultFileNames = new[] { "index.html" }   });

With this, I was able to serve static files, but the default document didn’t work. I always got a HTTP 404 response. Even though I saw the access to the file in the Process Monitor. Finally, I found the solution in one of the answers to a question of Stack Overflow. I had to call UseDefaultFiles first! Before UseStaticFiles:

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app.UseDefaultFiles(new DefaultFilesOptions   {     DefaultFileNames = new[] { "index.html" }   }); app.UseStaticFiles();