title: How to disable single finger dragging on touch devices
body: <p>When a user is dragging the page on mobile browsers, it acts like scrolling but when it comes to the map and the users finger is on the map, leaflet's dragging event is fired and scrolling is not.</p>
  <p>I want to disable single finger dragging but keep double fingers dragging so that the user can drag the map with 2 fingers whilst scrolling the page with 1 finger.</p>
  <p>Question: Is there any ways to do the above?</p>