This is a task for collecting some confusing problems during developing under IE, mostly when we really get confused with IE8!! To avoid struggling with IE, it's smart to do this as early as I can.

这个 Task 主要是为了收集 IE 开发中所遇到困惑，尤其当我们被 IE8 所折腾的时候。因此，为了避免陷入与 IE 的斗争，我理应尽早地去执行该任务。

Reference Articles:

引用文章：

• Console is not defined under IE8

  Predefined and limit some by UglifyJS via {pure_funcs : ['debug', 'console.debug', 'console.warn']}

  引入实现并通过 UglifyJS 限制部分方法使用

• Blur event is fired when clicking on the scrollbar under IE8

  Calculate the position of the mouse through the event and stop the propagation when clicking on the scrollbar.

  计算鼠标位置并通过阻止事件传递解决问题

• Internet Explorer's CSS rules limits

  Use css-split-webpack-plugin to solve.

  使用 css-split-webpack-plugin 来解决