if (!-e $request_filename){
rewrite ^(.*)$ /bitrix/urlrewrite.php;
}
Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept
Access-Control-Allow-Methods: GET, POST, PUT
Access-Control-Allow-Origin: *
Cache-Control: no-store, no-cache, must-revalidate
Connection: keep-alive
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Date: Tue, 27 Mar 2018 15:29:32 GMT
Expires: Thu, 19 Nov 1981 08:52:00 GMT
P3P: policyref="/bitrix/p3p.xml", CP="NON DSP COR CUR ADM DEV PSA PSD OUR UNR BUS UNI COM NAV INT DEM STA"
Pragma: no-cache
Server: nginx/1.4.6 (Ubuntu)
Set-Cookie: YS_GEO_IP_STORE_ACTIVE=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/; domain=tb.жж.ru
Set-Cookie: BITRIX_SM_LAST_VISIT=27.03.2018+18%3A29%3A31; expires=Fri, 22-Mar-2019 15:29:31 GMT; Max-Age=31104000; path=/
Set-Cookie: BITRIX_CONVERSION_CONTEXT_s1=%7B%22ID%22%3A11%2C%22EXPIRE%22%3A1522184340%2C%22UNIQUE%22%3A%5B%22conversion_visit_day%22%5D%7D; expires=Wed, 27-Mar-2019 15:29:31 GMT; Max-Age=31536000; path=/
Set-Cookie: YS_GEO_IP_STORE_ACTIVE=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/; domain=tb.жж.ru
Set-Cookie: BITRIX_SM_GUEST_ID=156; expires=Fri, 22-Mar-2019 15:29:31 GMT; Max-Age=31104000; path=/
Set-Cookie: BITRIX_SM_ABTEST_s1=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
Set-Cookie: BITRIX_SM_BANNERS=2_2_3_03042018%2C2_4_3_03042018%2C2_1_3_03042018%2C2_3_3_03042018; expires=Fri, 22-Mar-2019 15:29:32 GMT; Max-Age=31104000; path=/
Set-Cookie: BITRIX_SM_ABTEST_s1=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
Transfer-Encoding: chunked
X-Powered-CMS: Bitrix Site Manager (e524393dddec76bb7d3202c37f43c0db)
Вы можете посмотреть в своём собственном браузере, нажав F12 и открыв отладчик JS
Вам нужно будет детально изучить HTTP-заголовки которые отправляет Ваш браузер и сравнить их с заголовками, которые отправляет Ваш парсер...