[Chartjs]-Angular 2 ng2-charts donut add text

Copied your code to a Plunker, works just fine:

plunker: https://plnkr.co/edit/UGH3BKiWmgFqFWf78ZUE?p=preview

I think that adding the script this way will not work because angular would sanitize it. Try adding the script after the chart.js script on your page in <script> or preferably in it’s own file.