некорректная обработка ошибки 404

include_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/urlrewrite.php');

$sapi_type = php_sapi_name();
if ($sapi_type=="cgi") 
   header("Status: 404");
else 
   header("HTTP/1.1 404 Not Found");

@define("ERROR_404","Y");

require($_SERVER["DOCUMENT_ROOT"]."/bitrix/header.php");

$APPLICATION->SetTitle("404 - HTTP not found");

$APPLICATION->IncludeComponent("bitrix:main.map", ".default", Array(
   "LEVEL"   =>   "3",
   "COL_NUM"   =>   "2",
   "SHOW_DESCRIPTION"   =>   "Y",
   "SET_TITLE"   =>   "Y",
   "CACHE_TIME"   =>   "3600"
   )
);

require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>

ErrorDocument 404 /404.php