Swiper Clock Launch/Find the current running file

That's exactly what I want, to fix that bug. If that's the method that should work then that's what I'll try to trace down.
Just trying to fix the functionality in an existing app called Swiper Clock Launch - this adds code via a .boot.js file however it doesn't work.
The idea is this would add the feature to any existing clock to swipe to launcher (this works) and for any launcher to swipe back to clock (fails due to being unable to see which file is loaded - which is required to see if the current file is infact a launcher)