<xsl:variable name="js"><![CDATA[
        jQuery(function(){
        require(['https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.6/Chart.js'])
            var ctx = document.getElementById("myChart");
            var myChart = new Chart(ctx, {
            type: 'pie',
            data: {
                labels: [],
                datasets: [{
                data: [42, 8, 50],
                backgroundColor: [
                    "#ed6a47",
                    "#faae53",
                    "#ffd5a3",
                ],

                borderWidth: 0
                }]
            },
            options: {
                cutoutPercentage: 50,
                responsive: false,

            }
            });
          });
        ]]>
</xsl:variable>