Website hosted on my laptop: IP address redirects to localhost for all users (local and network)

I'm using MAMP to host my Joomla website on my Macbook. I've been developing it for a while and showing a few people by giving them my ip address. Recently we got the domain name [name removed by request], and I set up the forwarding to point to my IP. Now when anyone tries to visit the site via domain name or my ip they get re-directed to localhost.

What could be causing this? I've seen a few related questions, but 开发者_运维技巧their solutions didn't work for me or the situation was different.

it get redirected to localhost on port 8888

most likely an error in your apache host configuration