Code Review: Intel XDK project location based project with cordova plugins

To start, I need a little help with this tutorial using Cordova plugins and Intel XDK in a location based augmented reality app. [login to view URL] Specifically: I am unable to access the camera viewfinder as background and would like someone to help find my mistakes and suggest improvements to maximize accuracy of location services If this step goes smoothly and you are interested in continuing, next steps will be using proximity to preload and filter data.