Put both requested and actual browser page in the HTML

modules/adblockplusorg/files/adblockplus.org

 server {
   root /var/www/adblockplus.org/httpdocs;
 
   location / {
     index index.php index index.html;
 
     if ($arg_a = "view") {
       rewrite ^(.*) $1? permanent;
     }
 
     set $preferredLang en;
     if ($http_accept_language ~ ^(\w\w)\b) {
       set $preferredLang $1;
     }
     if (!-f $document_root/static/$preferredLang/index) {
       set $preferredLang en;
     }
 
-    set $browser "firefox";
+    set $user_agent "firefox";
     if ($http_user_agent ~ \bChrome/\d+) {
-      set $browser "chrome";
+      set $user_agent "chrome";
     }
     if ($http_user_agent ~ \bPresto/\d+) {
-      set $browser "opera";
+      set $user_agent "opera";
     }
     if ($http_user_agent ~ \bAndroid\s.*\bAppleWebKit/\d+) {
-      set $browser "android";
+      set $user_agent "android";
     }
 
     if ($arg_a ~ ^(view|show)?$) {
-      rewrite ^/(index\.html)?$ /$preferredLang/$browser redirect;
-      rewrite ^/(\w\w(_\w\w)?)/?$ /$1/$browser redirect;
+      rewrite ^/(index\.html)?$ /$preferredLang/$user_agent redirect;
+      rewrite ^/(\w\w(_\w\w)?)/?$ /$1/$user_agent redirect;
     }
 
     rewrite ^/(\w\w(_\w\w)?)/installation$ /$1/ permanent;
     rewrite ^/anwiki/(.*) /$1 permanent;
 
     if (-f $request_filename) {
       break;
     }
     if (-d $request_filename) {
       break;
     }
 
     set $static_uri $uri;
+    set $browser $user_agent;
     if ($uri ~ ^/(\w\w(_\w\w)?)/(firefox|chrome|opera|android)/?$) {
       set $static_uri "/$1/";
       set $browser $3;
     }
     set $static "";
     if (-f "$document_root/static$static_uri") {
       set $static "ok";
     }
     if (-d "$document_root/static$static_uri") {
       set $static "ok";
     }
     set $static "$static!$arg_a!$cookie_anwiki_anwsesscode";
     if ($static ~ ^ok!(view|show)?!$) {
-      rewrite ^ /static$static_uri?browser=$browser last;
+      rewrite ^ /static$static_uri?browser=$browser&user_agent=$user_agent last;
     }
 
-    rewrite ^/(\w\w(_\w\w)?)/(firefox|chrome|opera|android)/?$ /index.php?p=$1&browser=$3 last;
+    rewrite ^/(\w\w(_\w\w)?)/(firefox|chrome|opera|android)/?$ /index.php?p=$1&browser=$3&user_agent=$user_agent last;
     rewrite ^/(.*) /index.php?p=$1 last;
   }
 
   location /static/ {
       index index;
       internal;
       types {
         image/png png;
         text/xml xml;
         text/css css;
       }
       default_type text/html;
       charset utf-8;
 
       if ($arg_browser) {
-        set $browser_class ' class="$arg_browser"';
+        set $browser_class ' class="$arg_browser ua-$arg_user_agent"';
       }
       sub_filter ' id="content"' ' id="content"$browser_class';
   }
 
 
   location ~ \.php$ {
     client_max_body_size 8m;
 
     if ($arg_browser) {
-      set $browser_class ' class="$arg_browser"';
+      set $browser_class ' class="$arg_browser ua-$arg_user_agent"';
     }
     sub_filter ' id="content"' ' id="content"$browser_class';
 
     fastcgi_pass unix:/tmp/php-fastcgi.sock;
     fastcgi_index index.php;
 
     fastcgi_param SCRIPT_FILENAME /var/www/adblockplus.org/phproot$fastcgi_script_name;
 
     fastcgi_param QUERY_STRING $query_string;
     fastcgi_param REQUEST_METHOD $request_method;
     fastcgi_param CONTENT_TYPE $content_type;
     fastcgi_param CONTENT_LENGTH $content_length;
 
     fastcgi_param SCRIPT_NAME $fastcgi_script_name;
     fastcgi_param REQUEST_URI $request_uri;
     fastcgi_param DOCUMENT_URI $document_uri;
     fastcgi_param DOCUMENT_ROOT $document_root;
     fastcgi_param SERVER_PROTOCOL $server_protocol;
 
     fastcgi_param GATEWAY_INTERFACE CGI/1.1;
     fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;
 
     fastcgi_param REMOTE_ADDR $remote_addr;
     fastcgi_param REMOTE_PORT $remote_port;
     fastcgi_param SERVER_ADDR $server_addr;
     fastcgi_param SERVER_PORT $server_port;
     fastcgi_param SERVER_NAME $server_name;
   }
 }