cannot access backend on remote client, only work on localhost

Hi,

I need some help. I am new to container. I have follow the guide and installed Try-CB-Java. However the searching and filtering only works on localhost the demo and container installed. I have edited the "main.js" from localhost:8080 to domain-name:8080, the client on the same network can reach the frontend BUT cannot perform search and filter with error "NO RESPONSE (backend unresponsive?) from /hotels/*/France/"

Please help and advise, how can I make the demo work and accessible to public? Many thanks