I came across a unique situation while applying perfect-scrollbar to a container whose height is applied dynamically.
The scroll goes down the container even after reaching the end and while wheelPropagation set to false.
Note: This issue can be reproduced only in Firefox browser. It works perfectly in Chrome.
The issue occurs if the 'Dynamic height' calculated has some decimal points in the px value. Eg: 250.65px
Round off the value to the nearest integer and the issue won't occur in Firefox browser.
The original issue -> JsFiddle
The fixed one -> JsFiddle