title: Swagger does not show real error message
body: <p>We are on .NET WebAPI framework and we are using swagger on top of web api for annotations and out of the box UI experience. So far, it just has been working great. However, when I return an error from WebAPI(Http 400) as following code:</p>
  
  <p><code>return BadRequest("Some error");</code></p>
  
  <p>However, when I do that, it seems like Swagger is not able to parse the error properly. It basically, show <code>response 0</code>. Which is wrong for sure because when I go to <code>Chrome DevTools</code>, I see that my request had a response of HTTP 400 as I expected. </p>
  
  <p>How can I configure Swagger so that it is able to show the errors correctly? Or should I be throwing my errors a little bit differently to be able to see it in swagger?</p>