Carousel: Scroll position of columns not kept properly after swiping on recent webviews

[balat]

To reproduce: go to the page with tab on Ocsigen Start demo app and swipe to another column.

This is due to a bug in position:sticky with getBoundingClientRect in recent Chrome.

It seems to be fixed in Chrome 57.
https://bugs.chromium.org/p/chromium/issues/detail?id=672457
To be tested.