title: Can't use Nivo tooltip or crosshair draggability on mobile
body: <p>I'm trying to create a line chart that uses crosshairs and tooltip using Nivo. I was able to get everything working great on desktop, but on mobile, when I try to drag across the graph with my finger, nothing happens. The only time the crosshair and tooltip comes up is when I tap.</p>
  <p>This draggable functionality was working with react-vis, but I needed to move away from that for various reasons.</p>
  <p>Any recommendations or help?</p>