Vibe.d: Listening to port 8080 on external device doesn't work

[aberba via Digitalmars-d-learn]

Using vibe.d, I bind to port 8080 at 127.0.0.1 but I can't access 
server on my phone through hotspot using the external IP from ip 
addr on Linux. But 127.0.0 running Apache server works.

Don't if its vibe.d or OS (ubuntu 14.04)
How do I reached my vibe.d server in this case on my phone?