Vue 3 跳转页面报错: Invalid vnode type when creating vnode: undefined.

当vue 3 中A页面刷新本身, 使用间接跳转实现:
A -> B, 再由B->A

warn 代码:

<script>
import { h } from 'vue'
export default {
  created() {
    const { params, query } = this.$route
    const { path } = params
    this.$router.replace({ path: '/' + path, query })
  },
  render() {
    return h() // avoid warning message
  }
}
</script>

解决方案: 不用render方法, 直接用静态template:

<template>
  <div></div>
</template>
<script>
export default {
  created() {
    const { params, query } = this.$route
    const { path } = params
    this.$router.replace({ path: '/' + path, query })
  }
}
</script>

解决warn