title: Can Swagger render the content of app.UseDeveloperExceptionPage()?
body: <p>I have an ASP.NET Core 2.0 Web API where I added Swagger via Swashbuckle. Which is nice.</p>
  
  <p>I also have the <code>app.UseDeveloperExceptionPage()</code> option enabled in ASP.NET Core. Which is nice.</p>
  
  <p>But they don't play nice together. Because SwaggerUI just displays the returned HTML as text.</p>
  
  <p>For GET requests it isn't a big problem as I just paste the url into a browser. But for POST that doesn't work.
  So I was wondering if there was a way to make SwaggerUI render the html when the <code>Content-Type</code> header is <code>text/html</code>. I've been unable to find anything related to this, which is a bit puzzling :)</p>