nginx config for caching urls with parameters ?v=xxxxx or ?r=xxxxx

gistfile1.txt

server {
    listen   80;
    server_name  static.ammo.dev;
    access_log  /var/log/nginx/ammostatic.access.log;
    location / {
        root /home/leroux/projects/ammo/static;
        if ($args ~* "^[rv]=.*$") {
            expires max;
            break;
        }
        if ($is_args = "") {
            add_header Cache-Control  must-revalidate;
            break;
        }
    }
}