Couldn't forward the HTTP response back to the HTTP client: It seems the user clicked on the 'Stop' button in his browser.
*** Exception Errno::EPIPE in Passenger RequestHandler (Broken pipe) (process 4057):
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/rack/request_handler.rb:109:in `write'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/rack/request_handler.rb:109:in `process_request'
        from /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/response.rb:155:in `each'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/rack/request_handler.rb:108:in `process_request'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_request_handler.rb:207:in `main_loop'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb:418:in `start_request_handler'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb:358:in `handle_spawn_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/utils.rb:184:in `safe_fork'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb:354:in `handle_spawn_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:352:in `__send__'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:163:in `start'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/railz/application_spawner.rb:213:in `start'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb:262:in `spawn_rails_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb:256:in `spawn_rails_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb:154:in `spawn_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/spawn_manager.rb:287:in `handle_spawn_application'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:352:in `__send__'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
        from /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.10/bin/passenger-spawn-server:61