Adjust nginx's error configuration

# vim:ft=nginx

fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=ERR:1m inactive=1d;

fastcgi_cache_key "$scheme$request_method$host$request_uri";

map $http_x_forwarded_proto $forwarded_https {

	default off;

	https on;

}

fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=ERR:1m inactive=1d;

fastcgi_cache_key "$scheme$request_method$host$request_uri";

server {

	listen 80;

	server_name _;

	# Add Cache-Control headers for static files, removed in *.php location

	add_header Cache-Control "public, max-age=7776000, stale-while-revalidate=86400, stale-if-error=604800";

	error_page 404 /errors/404;

	error_page 404 @not-found;

	error_page 502 /errors/502.html;

	location /errors {

		internal;

		alias /etc/nginx/html;

	}

		location /errors/404 {

	location @not-found {

		include fastcgi.conf;

		fastcgi_param SCRIPT_FILENAME /app/index.php;

		fastcgi_cache ERR;

		fastcgi_cache_valid 404 1d;

	}

	}

	location @index {

		include fastcgi.conf;