People realy do that? Scan QR codes from a PC Screen?
I don't want to run this addon down but that sounds realy complicated to me.
My excuse woud be why not just put a wowhead link in your catch that you can just alt+tab into your browser? Instead of unlocking your phone open the app, let the app open a browser and then you still can't use all the wowhead options with your phone and you can't link things back into the game.