highcharts - 导出 highcharts 漏斗在转换时出现问题

Question

我想使用 JSON 导出漏斗高图，我使用演示页面 ( http://export.highcharts.com./demo ) 导出，但返回错误：

Oops..,  Something went wrong while converting.

我正在使用示例http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/funnel/的 JSON

{
    chart: {
        type: 'funnel',
        marginRight: 100
    },
    title: {
        text: 'Sales funnel',
        x: -50
    },
    plotOptions: {
        series: {
            dataLabels: {
                enabled: true,
                format: '<b>{point.name}</b> ({point.y:,.0f})',
                color: 'black',
                softConnector: true
            },
            neckWidth: '30%',
            neckHeight: '25%'

            //-- Other available options
            // height: pixels or percent
            // width: pixels or percent
        }
    },
    legend: {
        enabled: false
    },
    series: [{
        name: 'Unique users',
        data: [
            ['Website visits',   15654],
            ['Downloads',       4064],
            ['Requested price list', 1987],
            ['Invoice sent',    976],
            ['Finalized',    846]
        ]
    }]
}