babel不会转译Proxy
Unsupported feature
Due to the limitations of ES5, Proxies cannot be transpiled or polyfilled. See support in various JavaScript engines.
项目中使用了mobx5，导致低版本浏览器报错。因为mobx5使用了Proxy
参考链接：www.npmjs.com/package/mob…
参考链接：mobx.js.org/best/pitfal…可考虑使用Proxy的polyfill（暂未验证）github.com/GoogleChrom…
或者降低mobx版本
query-string不会被编译成es5
This module mainly targets Node.js, not the browser. It's up to you to transpile it with Babel if you want to use it in the browser. You can find a more detailed explanation here: sindresorhus/ama#446
自己写一个url处理工具方法
或者降低query-string到5.x版本（暂未验证）
babel配置
{ "presets": [["@babel/preset-env"], ["@babel/preset-react"]], "plugins": [ [ "@babel/plugin-transform-runtime", { "corejs": 3 } ], [ "@babel/plugin-proposal-decorators", { "legacy": true } ], [ "@babel/plugin-proposal-class-properties", { "loose": true } ], ]}使用以上配置即可
