WkhtmlToPDF / QtWeb Javascript Error

[syntaxc]

I am experiencing an error with ChartJS 2.7 on QtWeb 3.8.5 (wkhtmltopdf 0.12.4)

Javascript error:
Chart.bundle.js:15262TypeError: 'undefined' is not a function (evaluating 'onScroll.bind(expand, 'expand')')

Html code:

<div style="width:400px;height:400px;">
	<canvas id="myChart" style="width:400px;height:400px;"></canvas>
</div>
<script>
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
        datasets: [{
            label: '# of Votes',
            data: [12, 19, 3, 5, 2, 3],
            backgroundColor: [
                'rgba(255, 99, 132, 0.2)',
                'rgba(54, 162, 235, 0.2)',
                'rgba(255, 206, 86, 0.2)',
                'rgba(75, 192, 192, 0.2)',
                'rgba(153, 102, 255, 0.2)',
                'rgba(255, 159, 64, 0.2)'
            ],
            borderColor: [
                'rgba(255,99,132,1)',
                'rgba(54, 162, 235, 1)',
                'rgba(255, 206, 86, 1)',
                'rgba(75, 192, 192, 1)',
                'rgba(153, 102, 255, 1)',
                'rgba(255, 159, 64, 1)'
            ],
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero:true
                }
            }]
        }
    }
});
</script>

Any ideas how to fix this?

[benmccann]

Duplicate of #4767