I still think this line needs to handle errors more gracefully. If I have not defined my own FiltersHelper then I still get no output in the UI that anything is wrong except my permissions don't show up and the server has:

```
NoMethodError (undefined method `+' for nil:NilClass):
  app/helpers/filters_helper.rb:22:in `search_path'
  app/controllers/permissions_controller.rb:8:in `index'
  app/models/concerns/foreman/thread_session.rb:33:in `clear_thread'
  lib/middleware/catch_json_parse_errors.rb:9:in `call'
```