nginx vhost conf silex & symfony

app.nginx.conf

server {                                                                                                                                                                                       
    listen 80;
    server_name server.mydomain.net
    root /var/www/app/web;
    index index.php;

    location ~ \.php$ {
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;
        include fastcgi_params;
    }

    location / {
        if (-f $request_filename) {
            expires max;
            break;
        }

        if ($request_filename !~ "\.(js|htc|ico|gif|jpg|png|css)$") {
            rewrite ^(.*) /index.php last;
        }
    }
}