Nginx conf file for WordPress + KeyCDN

wordpress

server {
    listen 80;
    listen [::]:80;
    root /var/www/html;
    index  index.php index.html index.htm;
    server_name www.domain.io  origin.www.domain.io;

    set $cache_path $request_uri;

    client_max_body_size 100M;

    # bypass cache for POST requests
    if ( $request_method = POST ) {
        set $cache_path 'nocache';
    }

    # don't cache login/admin URLs
    if ($request_uri ~* "/(wp-login.php|wp-admin|login.php|backend|admin)"){
        set $cache_path 'nocache';
    }

    # don't cache if there is a cookie called PHPSESSID
    if ($http_cookie ~* "PHPSESSID"){
        set $cache_path 'nocache';
    }

    #Don't cache if there is a cookie called wordpress_logged_in_[hash]
    if ($http_cookie ~* "wordpress_logged_in_"){
        set $cache_path 'nocache';
    }

    # Don't use the cache for logged in users or recent commenters
    if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
        set $cache_path 'nocache';
    }

    # bypass cache if query string not empty
    if ( $query_string ) {
        set $cache_path 'nocache';
    }

    if (!-e $request_filename) {
        rewrite ^.*$ /index.php last;
    }


    location / {
        try_files $uri $uri/ /index.php?q=$uri&$args;
        if ($cache_path = 'nocache') {
            expires -1;
            add_header Cache-Control no-cache;
        }
    }

    location ~ \.php$ {
         include snippets/fastcgi-php.conf;
         fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
         fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         include fastcgi_params;

        if ($cache_path = 'nocache') {
            expires -1;
            add_header Cache-Control no-cache;
        }
        if ($cache_path != 'nocache') {
            expires +1h;
        }
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ {
        log_not_found off;

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