Ionic Popover on Android Device

Hi all,
I’m busy developing a basic application used to register on a database. Early in the user presses a 'register me button after which the terms of use page appears as a popover/modal. Now this works perfectly fine when using ‘ionic serve’ however on a device the background is not grayed out while the popover is active. Any advice? The device is am testing on is an Android Tablet running OS 5.1. (lollipop).

Any advice would be appreciated.