html 格式化会移除unknown的标签？

[gMan1990]

比如 https://element.eleme.cn/#/zh-CN/component/select

<el-select v-for="(v,i) in selects" :key="i" v-model="v.model" filterable style="width: 100%">
    <el-option v-for="(vv,ii) in v" :key="ii" :value="vv" />
</el-select>