警告 Consider marking event handler as 'passive' to make the page more responsive.

警告 echarts.min.js:22 [Violation] Added non-passive event listener to a scroll-blocking 'mousewheel' event. Consider marking event handler as 'passive' to make the page more responsive. 诸如此类

原因： 在16或是17年左右的一次更新，addEventListener 监听事件需要设置第三个参数，以获取更好的优化。缺少第三个参数便会有此警告。

解决方案： 添加第三个参数

原： 
modalDom.addEventListener('touchmove', function(event) {
      event.preventDefault();
      event.stopPropagation();
    });
新：
modalDom.addEventListener(
      "touchmove",
      function (event) {
        event.preventDefault();
        event.stopPropagation();
      },
      { passive: true }
    );

参考： 

1. stackoverflow.com/questions/3…

2. github.com/ElemeFE/ele…