CORS policy: No 'Access-Control-Allow-Origin' header

[jktan0504]

channel:1 Access to fetch at 'my-waha' from origin 'my-frontend' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

`server {
listen 80;
listen [::]:80;

      listen 443 ssl;
      listen [::]:443 ssl;

      ssl_certificate /etc/nginx/certs/cert.pem;
      ssl_certificate_key /etc/nginx/certs/private.pem;

      server_name mydomain.com;

      location / {
            proxy_pass http://waha_plus:3000;  # Name of the API service defined in docker-compose.yml
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

			# CORS configuration
			add_header 'Access-Control-Allow-Origin' 'https://myfrontend.com' always;
			add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, DELETE, PUT, PATCH' always;
			add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
			add_header 'Access-Control-Allow-Credentials' 'true' always;

			if ($request_method = 'OPTIONS') {
				add_header 'Access-Control-Allow-Origin' 'https://myfrontend.com' always;
				add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, DELETE, PUT, PATCH' always;
				add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
				add_header 'Access-Control-Max-Age' 1728000;
				add_header 'Content-Type' 'text/plain; charset=utf-8';
				add_header 'Content-Length' 0;
				return 204;
			}
      }
}`

Anyone ?

[devlikepro]

WAHA allows CORS by default, you can test it by accessing your own instance from different domain like in a browser. Kindly check your reverse proxy configuraiton (I'd suggest using something like dokku or Portainer with Traefik, it handles such cases)
https://waha.devlike.pro/dashboard/