Shocking scroll with mousewheel in Chrome on Mac

[NickdeK]

Scrolling on a Mac (OS X El Capitan, 10.11.5) and Chrome (50.0.2661.102) with a normal mouse and the mousewheel results in shocking scroll's and not scrolling to the next scroll point

In chrome + mousewheel action:
http://cloud.h-o.nl/gL48

Safari + mousewheel action (expected behavior):
http://cloud.h-o.nl/gLJD

[davidtaubmann]

I couldn't load your videos, but as long as I could test, with Crhome you should not use pixel units, it doesn't works. Maybe it's an issue with recent Chrome versions.

With vh units works fine (still).

[Martin-Pitt]

The videos still work, if I recall correctly, the issue here was that smoothscroll was kicking in while the user was still scrolling.

I had attempted to fix this in PR #7.

Same issue happens with trackpads by the way. Albeit trackpads are really difficult, as it's not possible to tell if "scroll gesture is held down" per se, like you can tell with a mouse button or touch events; There is no start & end to a scroll event.