set_cookie (ActionController::Response)

    # File lib/action_controller/response.rb, line 175
        def set_cookie(key, value)
          if value.has_key?(:http_only)
            ActiveSupport::Deprecation.warn(
              "The :http_only option in ActionController::Response#set_cookie " +
              "has been renamed. Please use :httponly instead.", caller)
            value[:httponly] ||= value.delete(:http_only)
          end

          super(key, value)
        end