title: Swagger UI Hangs on `Fetching resource list: Please wait`
body: <p>I am trying to install Swagger API in my <code>ASP.NET WEB API 2</code> project.</p>
  
  <p>I have installed the <code>swashbuckle</code> ( v5.4.0 ) nuget package. I then debug the project and got to <code>URL/swagger/ui/index</code>  where I get <code>Fetching resource list: http://localhost:44432/swagger/docsv1; Please wait.</code>  After some time I get the chrome page not responding. Kill or Wait screen.</p>
  
  <p>I am using default <code>SwaggerConfig.cs</code>.</p>
  
  <p>I have run the json validation test at: <code>https://online.swagger.io/validator/debug?url={SwaggerJSON URL HERE}/docs/v1</code></p>
  
  <p>What steps can I take to further debug my issue here?</p>
  
  <p>[Edit]
  I accidentally left my one tab open, and after a good 30 minutes the page rendered. What could be causing this? Possibly a endless recursion when parsing the json file?</p>