chrome 62, highchart v4.2.5 , Uncaught TypeError: Cannot use 'in' operator to search for '0' in arguments_marker - google-chrome

Question

My web application which is using highchart v4.2.5 runs fine. However,when I update chrome to 62.0.3202.62, It goes wrong. Here is the error message:
highcharts.unminified.js:25 Uncaught TypeError: Cannot use 'in' operator to search for '0' in arguments_marker
at forEach (<anonymous>)
at s (highcharts.unminified.js:25)
at c.drawTrackerGraph [as drawTracker] (highcharts.unminified.js:330)
at c.render (highcharts.unminified.js:271)
at highcharts.unminified.js:232
at Array.forEach (<anonymous>)
at s (highcharts.unminified.js:25)
at C.Chart.renderSeries (highcharts.unminified.js:231)
at C.Chart.render (highcharts.unminified.js:233)
at C.Chart.firstRender (highcharts.unminified.js:236)
Only the data and the chrome version will results in the problem.Data is too big, so I keep it in a txt file.However , I can't upload the txt file, so I just give a sample of the data. My javascript code is as follows:
<div id="perfCPU"></div>
var mydata = [{x: "1509562856000",y: 137.55},{x: "1509562857000",y: 137.67},{x: "1509562858000",y: 137.67},{x: "1509562859000",y: 137.68},{x: "1509562861000",y: 137.83},{x: "1509562862000",y: 137.89}]
specialLine({domId: 'perfCPU', unit: "%", name: 'CPU', data: mydata,color: '#ffc966'})
function formatTime(unixTimeStamp) {
var date = new Date(unixTimeStamp) ;
var hours = date.getHours()
var minutes = "0" + date.getMinutes() //如果是3分4秒,那么返回的分钟数字是3.如果是13分4秒,返回的分钟数字是13
var seconds = "0" + date.getSeconds()
return hours + ":" + minutes.substr(-2) + ":" + seconds.substr(-2) //-2是从倒数第2个元素开始
}
function specialLine(config) {
//计算tickPositions的值
//转化data的横坐标为数字
var length = config.data.length
if (length > 0) {
var i =0 ;
for (i; i< length; i++) {
config.data[i].x = config.data[i].x - '' //将 "1487312495" to number
}
var startTime = config.data[0].x - '';
var endTime = config.data[length - 1].x - '';
var interval = ~~((endTime - startTime) /3)
var tickPositions = [];
if (length >=4) {
tickPositions = [startTime,startTime +interval,startTime +2*interval,endTime]
}else if(length == 3) {
tickPositions = [startTime, ~~((endTime + startTime)/2),endTime]
} else if(length == 2) {
tickPositions = [startTime,endTime]
} else if(length == 1) {
tickPositions = [startTime]
}
Highcharts.chart(config.domId, {
title: {
text: '',
},
xAxis: {
tickPositions: tickPositions,
labels: {
enabled: true,
formatter: function () {
//将timestamp转化为日期
return formatTime(this.value)
}
}
},
tooltip: {
//将timestamp转化为时间
useHTML: true,
formatter: function() {
//return DrawPic.formatTime(this.point.x) + '<br>' + config.name + ':' +this.point.y + config.unit
var showHtml = formatTime(this.point.x) + '<br>' + config.name + ':' +this.point.y + config.unit
return showHtml
}
},
legend: {
enabled: false
},
plotOptions: {
line: {
dataLabels: {
enabled: false
}
},
series: {
color: '#ffc966',
turboThreshold:0
}
},
credits: {
enabled: false
},
series: [{
name: 'whatever',
data: config.data
}]
});
}
}
https://jsfiddle.net/phbLL3q8/