I use canvas to paint objects that can be dragged around. If user touches an area with no objects, he can scroll the page. I have a working touch events implementation and have trouble adding PointerEvents API support.
With touch events API I use event.preventDefault() to prevent the scrolling.
Now with PointerEvents API it does not work - I get the pointerDown event but no move events and automatic page scrolling kicks in.
So far I have found that you can use the touch-action CSS property to switch between page scrolling and touch actions, but not a way to do it on per-touch basis.
For example a user might scroll the page with one finger and simultaneously move an object with second finger.
