Reverse Proxy and redirect issue

I am trying to configure OpenLiteSpeed as a reverse proxy for a Pi-Hole server (in LAN).

Pi-Hole runs on port 80.
The proxy domain I am using is

I've set up a virtual host in OLS (according to the documentation) pointing to I have also added an external app pointing to the web server, and added the external app in Context configuration for URI /.

However, the problem with Pi-Hole, it automatically redirects anyone visiting to This does not work seemlessly for my OLS proxy configuration, and therefore Pi-Hole returns an error if I visit

I can open directly just fine (with no errors).

What can I do? I suppose I need something in my configuration redirecting anyone visiting to

Can anyone please point me in the right direction?

Thank you!