anchor.diff:                  end;
   
               false when Mode == final ->
  -                {undefined, Content, binary_size(Content)};
  +                {undefined, Content, iolist_size(Content)};
               false ->
                   %% implies Mode=stream | {file,_,_}
                   {undefined, Content, ContentLength}
  
positive.code:                             Content, Enc, Mode) of
              {data, Bin} ->
                  %% implies Mode==final
                  {undefined, Bin, binary_size(Bin)};
  
              true when Mode == stream; DOpts#deflate.use_gzip_static == false ->
                  Z = zlib:open(),
  
negative.code: make_chunk(Data) ->
      case yaws:outh_get_chunked() of
          true ->
              case iolist_size(Data) of
                  0 ->
                      empty;
                  S ->
  