{% set ID = random() %}
<canvas id="submission-chart-{{ ID }}" width="100%" height="{{ settings.chartHeight }}%"></canvas>

{% js "https://cdn.jsdelivr.net/npm/chart.js@2.9.4/dist/Chart.min.js" %}
{% js %}
  $(function () {
    setTimeout(function() {
      var ctx       = document.getElementById("submission-chart-{{ ID }}").getContext("2d");
      var chartData = {{ chartData|json_encode|raw }};
      var myChart = new Chart(ctx, chartData);
    }, 100);
  });
{% endjs %}