Unable to scroll on div with absolute

[MeRahulAhire]

Hi @ashthornton, I'm following this demo to implement asscroll in my threejs project which in essence is very similar to this one where I have my threejs canvas at zIndex to 1 and text overlay at zIndex to 2 with position absolute and the problem is I'm indeed seeing asscrollbar initialised but I'm unable to scroll as if the div become fixed position.

Any solution on how to solve this?