How to use brat annotation tool in local area network's other PCs?

Question

I want to use brat in local area network's another PC, but I can't do it.

My status is here.

• I can use brat in localhost. e.g http://localhost:8001
• I can use brat in localhost via Nginx. e.g. http://XXX.XXX.XXX/brat/
• I can't use brat in another PC via Nginx. e.g. http://XXX.XXX.XXX/brat/
• I can use other apps in another PC via Nginx. e.g. http://XXX.XXX.XXX/fooapp/

And, I can see index.html of brat in another PC via Nginx.

So. I think brat application failed to solve URL. For example, brat's JavaScript or Python has hardcoded http://localhost/foo/bar links.

I want to know about brat's configuration to solve this problem or other solution.