Canvas js stripline label

Trying to figure out if I can get a stripline label on the X axis to to have a horizontal text direction rather than vertical.

by canvasjs

HTML

<script src="http://canvasjs.com/assets/script/canvasjs.min.js"></script>
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {
  axisX: 
  {
    intervalType: "month",
    interval: 1,
    valueFormatString: "DD/MM/YYYY",
    minimum: new Date(2009, 9, 18),
    stripLines: [
      {
        value: new Date(2010, 0, 1),
        customLabel: "I want this to be horizontal",
        thickness: 2,
        color: "#FF0000",
        labelFontColor: "#000000",
      }
    ]
  },

  data: [
    {
      type: "column",
      color: "blue",
      dataPoints: [
        {x: new Date(2009, 10, 21),y: 5}, 
        {x: new Date(2009, 11, 19),y: 7}, 
        {x: new Date(2009, 12, 9),y: 10}, 
        {x: new Date(2010, 0, 5),y: 20}, 
        {x: new Date(2010, 1, 4),y: 8}, 
        {x: new Date(2010, 2, 3),y: 5}
      ]
    }      
  ]
});

showHorizontalLabel(chart)
chart.render();

function showHorizontalLabel(chart) {
  var dps = [];
  for(var i = 0; i < chart.options.axisX.stripLines.length; i++) {
    var stripLine = chart.options.axisX.stripLines[i];
    dps.push({ x: stripLine.value, y: 20, indexLabel: stripLine.customLabel})
  }
  chart.options.data.push({type: "scatter", markerSize: 0, toolTipContent: null, highlightEnabled: false, dataPoints: dps})
}