_wrapper_enabled?

# File actionpack/lib/action_controller/metal/params_wrapper.rb, line 291
      def _wrapper_enabled?
        return false unless request.has_content_type?

        ref = request.content_mime_type.ref

        _wrapper_formats.include?(ref) && _wrapper_key && !request.parameters.key?(_wrapper_key)
      rescue ActionDispatch::Http::Parameters::ParseError
        false
      end