http_sub_module / sub_filter of nginx and reverse proxy not working

Question

I am trying to reverse proxy my website and modify the content. To do so, I compiled nginx with sub_filter. It now accepts the sub_filter directive, but it does not work somehow.

server {     listen       8080;     server_name  www.xxx.com;      access_log  /var/log/nginx/www.goparts.access.log  main;     error_log  /var/log/nginx/www.goparts.error.log;     root   /usr/share/nginx/html;     index  index.html index.htm;      ## send request back to apache1 ##     location / {        sub_filter <title> '<title>test</title>';  sub_filter_once on;        proxy_pass  http://www.google.fr;      proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;      proxy_redirect off;      proxy_buffering off;      proxy_set_header        Host            $host;      proxy_set_header        X-Real-IP       $remote_addr;      proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;     } } 

Please help me

Answer 1

Check if the upstream source has gzip turned on, if so you need

proxy_set_header Accept-Encoding ""; 

so the whole thing would be something like

location / {     proxy_set_header Accept-Encoding "";     proxy_pass http://upstream.site/;     sub_filter_types text/css;     sub_filter_once off;     sub_filter .upstream.site special.our.domain; } 

Check these links

• https://www.ruby-forum.com/topic/178781
• https://forum.nginx.org/read.php?2,226323,226323
• http://www.serverphorums.com/read.php?5,542078