Events are not firing on BlackBerry10 when using addEventListener

I tried this with a fresh install of the latest Cordova build and a simple project. Whenever I try to do window.open and addEventListener like the loadstart/loadstop/exit event, those events are never fired on BlackBerry10. Also directly adding functions to the events like onload or onended does not help, only onunload and onbeforeunload are actually firing. I have no clue what's going on and this is my only way to report it. I hope someone can look into this and fix it as soon as possible. Unfortunately this issue is a blocker for us and we can't submit our app to the BlackBerry App World.