Zoom malfunction on Coinbase

[damiandragobetzky]

Description:
Making zoom gesture (double tap or enhancing) won't work. The only way to zoom in is by tapping on a textbox, and there's no way to undo this. This happens entering the site via Dapps (Coinbase)

Steps to reproduce:

Go to wallet.gnosis.pm via Coinbase Dapps
Try to zoom anywhere on the screen / Tap on a textbox as if trying to send a Token
Observe

Expected behavior:
Screen zooms in and out as the user makes it.

Capture:
https://drive.google.com/a/njambre.org/file/d/0B-A_nehOI1xdTFVDejVUMzlTUm04dk5pVEJ2ZUtDa2kzWmFr/view?usp=sharing

Environment:
Coinbase v6.0.2 tested on Nexus 5X

Additional context:
There is a slash between steps on the second step because I tried to make it more of an overall behavior regarding the zoom in both ways it occurs.