Is this plugin compatible with NGINX?

If anyone else runs into the issue of robots.txt returning a 404 on NGINX, if have anything like the following in your configs, it will break the virtual robots.txt support in WordPress:

location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
}

I solved this issue by adding the following within that statement:

try_files $uri $uri/ /index.php;