Allows for custom HTML labels in a ChartistJS chart.

chartist-plugin-htmllabels.js

 // HTML Label plugin
Chartist.plugins = Chartist.plugins || {};
Chartist.plugins.ctHtmlLabels = function(options) {
  return function(chart) {
    chart.on('draw', function(context) {
      if (context.type === 'label') {
        // Best to combine with something like sanitize-html
        context.element.empty()._node.innerHTML = context.text;
      }
    });
  }
}