Back in February I wrote a post about how to deliver 404 pages while immediately dealing out the correct status message for ASP.NET applications. I gave a hint about ASP.NET Core and have improved my solution since. So, let’s call this post a follow-up in a trilogy of posts.

Websites and webservices should return the proper HTTP status codes as response to requests, along with the possible proper body. When you’re a using ASP.Net MVC web application it can be a little tricky because of a configuration quirk I quite dislike and didn’t find much info about. They improved this practice immensely in ASP.Net Core web applications. So, I want to make this post to clear it up and get it all in one nice explanation and solution.