Issue 2532 - No Last-Modified header for pages on beta.adblockplus.org

modules/web/templates/adblockplus.org.conf.erb

 # XSS and clickjacking prevention headers
 
 set $csp_frame "";
 if ($uri ~ ^/(:?\w\w(_\w\w)?/)?(?:index|firefox|chrome|opera|android|internet-explorer|safari|yandex-browser|maxthon)?$)
 {
   set $csp_frame "; frame-src www.youtube-nocookie.com;";
 }
 add_header Content-Security-Policy "default-src 'self'; img-src * data:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' $csp_frame";
 add_header X-Frame-Options "sameorigin";
 
@@ skipping 39 matching lines @@
 if ($http_user_agent ~ \bYaBrowser/\d+)
 {
   set $user_agent "yandex-browser";
 }
 if ($http_user_agent ~ \bMaxthon/\d+)
 {
   set $user_agent "maxthon";
 }
 
 sub_filter ' id="content" class="' ' id="content" class="ua-$user_agent ';
+sub_filter_last_modified on;
 
 set $index_page "firefox";
 if ($user_agent != "")
 {
   set $index_page $user_agent;
 }
 
 # Various redirects
 
 rewrite ^/(\w\w(_\w\w)?/)?changelog-1.3.1$ /$1\changelog-1.3 permanent;
@@ skipping 144 matching lines @@
 }
 location @proxied
 {
   proxy_pass https://server_16.adblockplus.org;
   proxy_set_header Host adblockplus.org;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_redirect https://adblockplus.org/ https://$host/;
   sub_filter_once off;
   sub_filter https://adblockplus.org/ https://$host/;
 }