Highcharts Export Issue

by adkf37

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<script src="https://code.highcharts.com/modules/parallel-coordinates.js"></script>

<div id="container"></div>


<h3>Exported CSV:</h3>
<pre id="preview"></pre>

CSS

#container {
  height: 300px;
  max-width: 800px;
  margin: 2em auto;
}

pre {
  border: 1px solid silver;
  border-radius: 0.5em;
  padding: 1em;
  color: green;
}

JavaScript

var data = [
  [1563494433000, 80931519, 34500000000, 5.5, 180980, 4.5],
  [1563516033000, 192799982, 34299999999, 5.0, 180980, 2.6],
  [1563537633000, 80952205, 34400000000, 5.4, 180981, 3.3],
  [1563559233000, 80894709, 34500000000, 4.9, 180982, 2.3],
  [1563580833000, 80957804, 34600000000, 5.5, 180982, 4.8],
  [1563602433000, 82728321, 34299999999, 5.0, 180982, 2.4],
  [1563624033000, 80941151, 34400000000, 5.4, 180982, 3.1],
  [1563645633000, 80914473, 34500000000, 5.0, 180982, 2.4],
  [1563667233000, 80940037, 34600000000, 5.5, 180982, 4.5],
  [1563688833000, 82448403, 34299999999, 5.0, 180983, 2.5],
  [1563710433000, 80957489, 34400000000, 5.4, 180983, 3.3],
  [1563732033000, 80891619, 34500000000, 4.9, 180984, 2.4],
  [1563753634000, 80950956, 34600000000, 5.4, 180984, 4.3],
  [1563775233000, 82584246, 34400000000, 5.0, 180985, 2.5],
  [1563796833000, 80932873, 34500000000, 5.5, 180986, 2.3],
  [1563818432000, 80897394, 34600000000, 5.0, 180987, 2.4],
  [1563840033000, 81005192, 34700000000, 5.6, 180988, 5.0],
  [1563861634000, 81174388, 34500000000, 5.0, 180987, 2.5],
  [1563883234000, 80937058, 34600000000, 5.4, 180988, 3.0]
];

var options = {
  chart: {
    type: 'spline',
    parallelCoordinates: true,
    parallelAxes: {
      lineWidth: 2
    },
    renderTo: 'container'
  },
  title: {
    text: 'Trends'
  },
  plotOptions: {
    series: {
      animation: false,
      marker: {
        enabled: false,
        states: {
          hover: {
            enabled: false
          }
        }
      },
      states: {
        hover: {
          halo: {
            size: 0
          }
        }
      },
      events: {
        mouseOver: function() {
          this.group.toFront();
        }
      }
    }
  },
  xAxis: {
    categories: [
      'time',
      'snapshot size',
      'node usage',
      'duration (min)',
      'files backed',
      'transfer time (min)'
    ],
    offset: 10
  },
  yAxis: [{
      type: 'datetime',
    },
    {
      min: 0
...