anchor.diff:             encoding          = Encoding,
              date              = make_date_header(),
              server            = make_server_header(),
  +           last_modified     = make_last_modified_header(UT#urltype.finfo),
              etag              = make_etag_header(UT#urltype.finfo),
              content_range     = make_content_range_header(Range),
              content_length    = make_content_length_header(Length),
  
positive.code:                noundef(H#outh.location),
                 noundef(H#outh.date),
                 noundef(H#outh.allow),
                 noundef(LastModified),
                 noundef(Expires),
                 noundef(CacheControl),
                 noundef(H#outh.etag),
  
negative.code:                               _ ->
                                    {H#outh.expires, H#outh.cache_control}
                            end,
                  {E, CC}
          end,
  
      %% Add 'Accept-Encoding' in the 'Vary:' header if the compression is enabled
  