NGINX issue with ecdsa certificate

Hello all,

I have encountered a bug with Unraid, where emhttpd has issues creating the nginx config file when using a ecdsa-with-SHA512 certificate (RSA certs do not seem to have this issue). This cert was self signed with a CA trusted on a few of my devices. After a bit of digging, I saw that running the nginx command gave the following error:

nginx: [emerg] invalid number of arguments in "return" directive in /etc/nginx/conf.d/emhttp-servers.conf:39

At line 39, we can see the following (where XYZ Unraid is the CN of the certificate) :

server {
    #
    # Redirect http requests to https
    #
    listen *:80 default_server;
    listen [::]:80 default_server;
    return 302 https://XYZ Unraid:443$request_uri;
}

 The issue, in the meantime, can be fixed by replacing XYZ Unraid with $host:

server {
    #
    # Redirect http requests to https
    #
    listen *:80 default_server;
    listen [::]:80 default_server;
    return 302 https://$host:443$request_uri;
}

And then running nginx command again to apply the changes

Anyone who has a better idea of how this nginx file is created can take a look at this issue?

Thanks!