Wordpress: nginx proxying to apache2. Wordpress installed in a subdirectory. All wp-admin and wp-login links working

wordpress_nginx_apache_subdirectory_wpadmin.sh

# in wp-config.php
define('WP_HOME',  'http://' . $_SERVER['HTTP_HOST'] . '/recipedia');
define('WP_SITEURL',  'http://' . $_SERVER['HTTP_HOST'] . '/recipedia');
$_SERVER['REQUEST_URI'] = '/recipedia' . $_SERVER['REQUEST_URI'];



#in nginx config
location /recipedia/ {
    proxy_pass http://127.0.0.1:85/;
    #rewrite /recipedia/(.*) /$1 break;
    #proxy_redirect http://127.0.0.1:85/ http://$host/recipedia/;
    rewrite ^/recipedia/?$ / break;
    rewrite ^/recipedia/(.*) /$1 break;
    proxy_redirect off;
    proxy_buffering on;
    proxy_buffers 12 12k;
    proxy_redirect off;
    server_name_in_redirect off;
    port_in_redirect off;

    #proxy_set_header        Referer                 $http_referer;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_pass_header Set-Cookie;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    #proxy_set_header X-Forwarded-Server $http_host;
    proxy_set_header X-Forwarded-Host $http_host;
    proxy_set_header X-NginX-Proxy true;
    proxy_set_header X-M-Secure "true";
    #proxy_set_header Host $http_host;

    fastcgi_param REMOTE_ADDR $remote_addr;
    fastcgi_param REMOTE_PORT $remote_port;
    fastcgi_param SERVER_ADDR $remote_addr;
    fastcgi_param SERVER_PORT $server_port;
    fastcgi_param SERVER_NAME $server_name;
    #fastcgi_param HTTP_HOST $host;
   expires 5m;
  }