title: ChartJS: Show default tooltip onclick
body: <p>I have a chart.js line chart displaying properly. When you hover over the y-axis gridlines, the tooltips display as they should.</p>
  
  <p>I'm trying to convert this to function on a touchscreen, so there is no hover. Is there a way to add a simple parameter to make the tooltip show on both hover and onclick? </p>
  
  <p>Note, I know I could add a custom tooltip and add all of that functionality - I'm trying to see if there's just a parameter I can add as I don't need a custom tooltip.</p>