DataLabels formatter not working in Highcharts Sankey Diagram

Question

Expected Behaviour: Ability to format the dataLabel in the sankey diagram

Actual Behaviour: dataLabel is not getting formatted.

dataLabels: {
    enabled: true,
    formatter: function(){
        return "Abc";
    }
  }

Live demo with steps to reproduce the issue:

http://jsfiddle.net/jy0761aw/2/

Affected browser(s): All browsers

Answer 1

I was having the same issues. Sankey is really hard to implement I guess. Use nodeFormatter instead, formatter is just not working. Example below.

nodeFormatter: function (arg) {
    if (!this.point.sum) {
        return null;
    } else {
        return this.key;
    }
}