cascader卡顿

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<br> <el-cascader :options="categoryTree" :props="props" collapse-tags v-model="category" style="width:100%" @change="changeCategory"               @visible-change="visibleChange">             </el-cascader>

　　增加@visible-change="visibleChange"

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visibleChange (val) {      this.$nextTick(() => {        const $el = document.querySelectorAll('.el-cascader-panel .el-cascader-node[aria-owns]');        Array.from($el).map((item) => item.removeAttribute('aria-owns'));      })    },

　

解决方案

.el-cascader-node 元素生成后移除aria-owns属性