anchor.diff:                                                  true ->
                                                       yaws:outh_set_static_headers
                                                         (Req, UT, H, Range),
  +                                                    maybe_set_page_options(),
                                                       Do_deliver();
                                                   false ->
                                                       yaws:outh_set_304_headers(
                                                         Req, UT, H),
  +                                                    maybe_set_page_options(),
                                                       deliver_accumulated(
                                                         CliSock),
                                                       done_or_continue()
  
positive.code:                             case member(ETag,yaws:split_sep(Line, $,)) of
                                  true ->
                                      yaws:outh_set_304_headers(Req, UT, H),
                                      deliver_accumulated(CliSock),
                                      done_or_continue();
                                  false ->
  
negative.code:     Req = ARG#arg.req,
      H = ARG#arg.headers,
  
      Regular_allowed   = ['GET', 'HEAD', 'OPTIONS'],
      IsReentrantRequest = erase(is_reentrant_request),
      if
          %% Do not check http method for reentrant requests
          IsReentrantRequest == true;
          Req#http_request.method == 'GET';
          Req#http_request.method == 'HEAD' ->
              ETag = yaws:make_etag(UT#urltype.finfo),
  