anchor.diff:                                                     (stream rs.serialize::*serializer-output*) &rest args)
     (declare (ignore args))
     (rs.serialize:with-object ("error" :serializer serializer
  -                                      :stream stream)
  +                                     :stream stream)
       (rs.serialize:set-attribute
        "detail"
        (let ((debug-mode (if (boundp 'rs:*server-debug-mode*)
  
positive.code:                                      (stream rs.serialize::*serializer-output*) &rest args)
    (declare (ignore args))
    (rs.serialize:with-object ("error" :serializer serializer
                                        :stream stream)
      (rs.serialize:set-attribute
       "detail"
       (apply #'format
              nil
              (simple-condition-format-control error)
  
negative.code: 
  (defmethod setup-reply-from-error ((error error))
    (setf (hunchentoot:return-code*)
          (http-return-code error))
    (serialize-error error))
  
  (defmethod setup-reply-from-error ((error http-error))
  