    # File lib/action_controller/filters.rb, line 530
            def find_filter_append_position(filters, filter_type)
              # appending an after filter puts it at the end of the call chain
              # before and around filters go before the first after filter in the chain
              unless filter_type == :after
                filter_chain.each_with_index do |f,i|
                  return i if f.after?
                end
              end
              return -1
            end