element-ui的el-tree组件不支持nuxt.js 的服务端渲染

Question

以下是示例代码

<!-- 评论组件 -->
<template>
<el-tree :data="data" :props="defaultProps" @node-click="handleNodeClick"></el-tree>
</template>

<script>
import Vue from "vue";
import { Tree} from "element-ui";
console.log(Tree);
Vue.use(Tree); 
  export default {
    data() {
      return {
        data: [{
          label: '一级 1',
          children: [{
            label: '二级 1-1',
            children: [{
              label: '三级 1-1-1'
            }]
          }]
        }, {
          label: '一级 2',
          children: [{
            label: '二级 2-1',
            children: [{
              label: '三级 2-1-1'
            }]
          }, {
            label: '二级 2-2',
            children: [{
              label: '三级 2-2-1'
            }]
          }]
        }, {
          label: '一级 3',
          children: [{
            label: '二级 3-1',
            children: [{
              label: '三级 3-1-1'
            }]
          }, {
            label: '二级 3-2',
            children: [{
              label: '三级 3-2-1'
            }]
          }]
        }],
        defaultProps: {
          children: 'children',
          label: 'label'
        }
      };
    },
    methods: {
      handleNodeClick(data) {
        console.log(data);
      }
    }
  };
</script>

控制台会报错：[Vue warn]: The client-side rendered virtual DOM tree is not matching server-rendered content. This is likely caused by incorrect HTML markup, for example nesting block-level elements inside <p>, or missing <tbody>. Bailing hydration and performing full client-side render.
客户浏览器端渲染正常，element-ui的其它组件也都支持SSR，唯独tree组件的SSR会报错

Answer 1

如果组件需要操作到dom或者windows对象的，就无法使用ssr，建议UI组件使用客服端引入渲染，