Mirroring an nginx page?

Question

Nginx

Hello, I came across such a module ngx_http_mirror_module,
as I understand it, it can mirror the page, but for some reason I didn’t try to set it up, it doesn’t work at all, could someone please show how the code should look right so that when you go to site1.com, site2 opens .com

location / {
    mirror /mirror;
    mirror_request_body off;
    proxy_pass http://backend;
}

location = /mirror {
    internal;
    proxy_pass http://log_backend;
    proxy_pass_request_body off;
    proxy_set_header Content-Length "";
    proxy_set_header X-Original-URI $request_uri;
}