fix @babel/preset-env browsers config #632
Merged
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之前的配置一直是错的,
@babel/preset-env
的最新版会做校验导致 build 报错。配置参考: https://new.babeljs.io/docs/en/next/babel-preset-env.html#targetsbrowsers
另外 umi 里面锁死了
@babel/preset-env
为 7.0.0-beta.46,这个问题暂时不会暴露。