How do I browse a local network if my IP is an IPv6

Previously I could browse my localhost machine on a mobile device connected over wifi using my ip which was IPv4.

In developing a webapp or website this is very handy. I don't have to deploy changes to a live website/host. previously this worked like this http://11.22.33.44/ entering this on the mobile then loaded the development workspace in the device. Of course the ip was the one given by my ISP now the IP is a IPv6 one and this technique no longer works. I have tried various things like square brackets around the number http://ift.tt/25CPrY5 doesn't seem to work ?