Hi James, I'm glad that worked. I also looked through the old Webkit version v3 used and did confirm that it did not support touch events so that's definitely why there was a behavior difference between v3 and v4.

After looking through the node editor a bit more I also saw that there are some removeEventListener() for the touch events that should probably be taken out as well if the addEventListener() calls are removed.

I'll also see if I can add a way for a dialog to opt-in to receive some trackpad specific events so it can differentiate between a trackpad scroll (used for panning) versus a mouse wheel scroll (used for zooming) without having to do low level touch event handling.

- Michael