Rack::SSL sounded great, right? But now you have customers who are forced to use https and you may be experiencing issues from slows pages to redirect loops. The problem is that Rack::SSL sets a header that the browser stores for a year and causes the client to auto redirect to https independent of the app or the webserver configuration.
All you have to do is:
Remove your Rack::SSL gem from the Gemfile and any configuration file including your config.ru if needed.
Add the following to the Gemfile:
gem 'rack-ssl-cure', require: 'rack/ssl_cure'
Add the following to your config.ru:
Check any other configs. Deploy and watch your site speed up, and your customers smile.
TODO: Write the one test. :)