Treemap bug

by kzoon

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/treemap.js"></script>
<div id="container"></div>

CSS

#container {
    min-width: 300px;
    max-width: 600px;
    margin: 0 auto;
}

JavaScript

Highcharts.chart('container', {
    series: [{
        type: "treemap",
        data: [{
            name: 'A',
            value: 6
        }, {
            name: 'B',
            value: 6
        }, {
            name: 'C',
            value: 4
        }, {
            name: 'D',
            value: 3
        }, {
            name: 'E',
            value: 2
        }, {
            name: 'F',
            value: 2
        }, {
            "name": "TEST",
        "value": null,
        "color": "rgba(73,41,112,1)"
        }]
    }],
    title: {
        text: 'Highcharts Treemap'
    }
});