anchor.diff:      OuterBoundary = couch_uuids:random(),
       InnerBoundary = couch_uuids:random(),
       Options = [attachments, follows, att_encoding_info | Options1],
  -    CType = {"Content-Type", 
  +    CType = {"Content-Type",
           "multipart/mixed; boundary=\"" ++ ?b2l(OuterBoundary) ++ "\""},
       {ok, Resp} = start_chunked_response(Req, 200, [CType]),
       couch_httpd:send_chunk(Resp, <<"--", OuterBoundary/binary>>),
  
positive.code: 
  -import(couch_httpd,
      [send_json/2,send_json/3,send_json/4,send_method_not_allowed/2,
      send_response/4,start_json_response/2,start_json_response/3,
      send_chunk/2,last_chunk/1,end_json_response/1,
      start_chunked_response/3, absolute_uri/2, send/2,
      start_response_length/4]).
  
negative.code:         ({{not_found, missing}, RevId}) ->
               RevStr = couch_doc:rev_to_str(RevId),
               Json = ?JSON_ENCODE({[{"missing", RevStr}]}),
               couch_httpd:send_chunk(Resp,
                  [<<"\r\nContent-Type: application/json; error=\"true\"\r\n\r\n">>,
                  Json,
                  <<"\r\n--", OuterBoundary/binary>>])
           end, Results),
  