umijs
umi3.x + @umijs/plugin-qiankun2.18.3 子应用react组件报内存泄漏警告
问题描述
第一次点击子应用tab进入子应用后，点击浏览器回退回到主应用，react组件报错，报错信息如下：
Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in the componentWillUnmount method. in Router (created by RouterComponent) in RouterComponent in Provider (created by _DvaContainer) in _DvaContainer in Unknown in Unknown
再次点击该子应用tab进入该子应用，依然报错，报错信息如下：
Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function. in _default (at Provider.tsx:30) in Unknown
然后再次循环上述操作（进出该子应用）就不会再报错了。
问题分析
该报错信息是react组件卸载之后仍存在更新状态的操作导致的警告，但是我的子应用没有更新state或store的操作，就是一个简单的函数组件，无状态。
版本信息
主子应用都是以下版本
"umi": "^3.3.3" "@umijs/plugin-qiankun": "^2.18.3"
可复现该问题的代码仓库
https://github.com/942368681/umi-qiankun-demo
望解答，谢谢！
主子应用分别部署上线无此类问题（主子域名方式部署），该问题只存在于本地开启服务器调试阶段，主子应用均部署在localhost，只不过端口不同，推测是本地服务ip相同端口不同造成此类问题，但具体原因不详 @kuitos
