anchor.diff:  		LastModified ->
   			LastModifiedStr = httpd_util:rfc1123_date(LastModified),
   			Req4 = cowboy_req:set_resp_header(
  -				<<"Last-Modified">>, LastModifiedStr, Req3)
  +				<<"last-modified">>, LastModifiedStr, Req3)
   	end,
   	{Req5, State4} = set_resp_expires(Req4, State3),
   	case call(Req5, State4, Fun) of
  
positive.code: 	end.
  
  set_language(Req, State=#state{language_a=Language}) ->
  	Req2 = cowboy_req:set_resp_header(<<"Content-Language">>, Language, Req),
  	charsets_provided(cowboy_req:set_meta(language, Language, Req2), State).
  
  %% charsets_provided should return a list of binary values indicating
  
negative.code: 			forbidden(Req2, State#state{handler_state=HandlerState});
  		{{false, AuthHead}, Req2, HandlerState} ->
  			Req3 = cowboy_req:set_resp_header(
  				<<"www-authenticate">>, AuthHead, Req2),
  			respond(Req3, State#state{handler_state=HandlerState}, 401)
  	end.
  
  