Time chart become empty issue

Debug time chart become empty during reload data.

by YeongCY

HTML

<script src="https://cdn.zoomcharts-cloud.com/1/18/4/zoomcharts.js"></script>
<div id="demo"></div>
<button onclick="reload()">Reload</button>

JavaScript

var dataObj = {
    //"dataLimitFrom":1279408157,
    //"dataLimitTo":1384253671,
    "unit":"h",
    "values":[[1279408157,"0.049509999999999998","0.049509999999999998","20",0.99]
...