How to receive X-Client-Port $remote_port?

Hey guys,
we need to receive the $remote_port, because it is necessary for CGNAT connections. We’ve added the header like this via NGINX:

proxy_set_header X-Client-Port $remote_port; 

But it is not availble in our this.connection.httpHeaders object. Is there any way to receive it within our Meteor methods?

What approach did you try for the solutions? Does sending it directly from the client work?

We are now using the “via” header field to pass it from NGINX to our Meteor application.