title: Showing Swagger UI for API in a different project (Swashbuckle)
body: <p>We have a .NET solution with 2 projects:</p>
  
  <ul>
  <li>ASP.NET MVC Portal project </li>
  <li>OWIN Host API project (with custom
  controller selector)</li>
  </ul>
  
  <p>We are trying to expose a public documentation to a few API controllers in the OWIN-based API project
  We would like to show the Swagger UI from the Portal project for controllers in the API project</p>
  
  <p>So far, all attempts have not been successful.  When adding Swagger UI to the Portal project, it only wants to show documentation about controllers in the Portal project, not from the API project.</p>
  
  <p>When adding Swagger UI to the API project (not preferred solution), it doesn't work at all, probably because of the custom controller selector</p>
  
  <p>However, I think I'm missing something obvious as this feels like a very basic configuration setting that we're missing</p>