重置缩放到chart.js中的初始？

Question

我是ChartJS的新手。我应用了此库的扩展来启用缩放。起初看起来不错，但是当我缩放时，我无法返回到条形图开始的原始点。

有人知道为什么这会发生在我身上还是我该如何解决？非常感谢。

var ctx = document.getElementById("canvas").getContext('2d');
var myChart = new Chart(ctx, {
   type: 'bar',
   data: {
      labels: ["08 Aug 2018 02:42 pm","09 Aug 2018 11:24 am","04 Sep 2018 01:23 pm","04 Sep 2018 01:26 pm","04 Sep 2018 01:31 pm","04 Sep 2018 01:33 pm","04 Sep 2018 01:35 pm","04 Sep 2018 01:36 pm","04 Sep 2018 01:38 pm","04 Sep 2018 01:38 pm","04 Sep 2018 01:40 pm","04 Sep 2018 01:45 pm","04 Sep 2018 01:46 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:53 pm","04 Sep 2018 02:07 pm","04 Sep 2018 02:19 pm","04 Sep 2018 02:19 pm","04 Sep 2018 02:20 pm","04 Sep 2018 02:30 pm","04 Sep 2018 02:31 pm","04 Sep 2018 02:33 pm","05 Sep 2018 09:30 am","05 Sep 2018 09:31 am","08 Aug 2018 02:42 pm","09 Aug 2018 11:24 am","04 Sep 2018 01:23 pm","04 Sep 2018 01:26 pm","04 Sep 2018 01:31 pm","04 Sep 2018 01:33 pm","04 Sep 2018 01:35 pm","04 Sep 2018 01:36 pm","04 Sep 2018 01:38 pm","04 Sep 2018 01:38 pm","04 Sep 2018 01:40 pm","04 Sep 2018 01:45 pm","04 Sep 2018 01:46 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:49 pm","04 Sep 2018 01:53 pm","04 Sep 2018 02:07 pm","04 Sep 2018 02:19 pm","04 Sep 2018 02:19 pm","04 Sep 2018 02:20 pm","04 Sep 2018 02:30 pm","04 Sep 2018 02:31 pm","04 Sep 2018 02:33 pm","05 Sep 2018 09:30 am","05 Sep 2018 09:31 am"],

   datasets: [{"label":"Estatura (cm)","backgroundColor":"rgba(0, 100, 150, 0.5)","pointBorderColor":"rgba(26,179,148,1)","data":["68.00","69.00","70.00","71.00","72.00","73.00","74.00","75.00","76.00","77.00","78.00","79.00","80.00","81.00","82.00","83.00","84.00","85.00","86.00","87.00","88.00","89.00","90.00","91.00","68.00","69.00","70.00","71.00","72.00","73.00","74.00","75.00","76.00","77.00","78.00","79.00","80.00","81.00","82.00","83.00","84.00","85.00","86.00","87.00","88.00","89.00","90.00","91.00"]}]

   },
    options: {
      legend: {
        position: 'top',
      },
      scales: {
        xAxes: [{
          ticks: {
            autoSkip: true,
            maxRotation: 0,
            minRotation: 0
          }
        }]
      },
      pan: {
        enabled: false,
        mode: 'xy' // is panning about the y axis neccessary for bar charts?
      },
      zoom: {
        sensitivity:0.5, drag: false, enabled: true, mode: 'x'
      }
    }
});

这是我的代码：

https://jsfiddle.net/ogq5uex6/2/