IE,动态生成的Canvas对象将不支持getContext方法，导致ctx.fill报错
[ Full content available at: https://github.com/apache/incubator-echarts/issues/9129 ] This message was relayed via gitbox.apache.org for [email protected]
- [GitHub] [incubator-echarts] PerttyZhan opened issue #9129: IE下canv... GitHub
