I have tried 3 separate things when I faced the same situation:
window.history.back()
navigator.app.backHistory();
History.go(-1);
Individually, none of these solve the problem. I put all 3 things together and much to my surprise it worked. I really don't know what is behind it.
Then I decreased to two functions and removed:
window.history.back()
Now I am using this function and it is working fine.
//Works Fine
function onBackKeyDown() {
history.go(-1);
navigator.app.backHistory();
}