Show errors in development environment

So I made consider_all_requests_local to option true in development.rb file.

config.consider_all_requests_local = true

My development and production environments are linked to aibrake debugging system. The problem is when i set consider_all_requests_local as true, I still can't see any errors in my browser. What I get is this: http://ift.tt/1O6zbzp

Have any ideas why I can't see errors in my browser?