Currently we send scroll dom events to notify that scrolling has happened. However we don't send overscroll and scrollend events. These two events are useful when a developer wants to customize overscroll actions such as pull to refresh.
For more information please check the design doc:
https://docs.google.com/document/d/1CJgCg7Y31v5MbO14RDHyBAa5Sf0ZnPVtZMiOFCNbgWc/edit?usp=sharing
Comment 1 by dtapu...@chromium.org
, Nov 21