There is a "no more comics" issue, I can't push the ok button. Komic just crash and go to the home screen of the kindle not komic.
The ReadingJS attached here is functionnal. fully detect taps and scrolls.
Have fun ! (I don't know exactly which parameter I modified in your 2 functions but after some random play with the parameters, it works
I don't know what's excatly modified so it surely is not the most optimized one but it works well on my kindle PW.