Allowing Frame cross-origin

Question

In this script, my server is nginx.sample.com. It enabled CORS nginx.sample.com:8080 # tomcat and host with the same server

I got Error message:

Uncaught DOMException: Blocked a frame with origin "http://nginx.sample.com" from accessing a cross-origin frame.
    at HTMLIFrameElement.document.getElementById.onload (eval at _evaluateScript (http://nginx.sample.com/app/a4j/g/3_3_3.Final/org/ajax4jsf/framework.pack.js:2346:14), <anonymous>:7:116)

I already add "add_header Access-Control-Allow-Origin *;" to my configuration but no luck

and Here is my nginx configuration files:

/etc/nginx/conf.d/wildfly.conf

upstream wildfly {
  server nginx.sample.com:8080 weight=100 max_fails=5 fail_timeout=5;
}

server {
  listen          80;
  server_name     nginx.sample.com;

    add_header Access-Control-Allow-Origin *;

  location / {
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://wildfly/;
  }
}

/etc/nginx/nginx.conf

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    include /etc/nginx/conf.d/*.conf;
}

Is there a way to configure nginx so my nginx.sample.com:8080 and proxywebsite1.com are not seen as different by the browser?

I'm using nginx/1.20.1

Thanks