Nuxt.js 在动态路由_id.vue里使用asyncData，为什么会执行2次？

Question

async asyncData(context) {         console.log("asyncData runing");         let categoryListData = await axios({             method: "POST",             url: api.categoryList,             headers: {                 authorization: api.authCode,                 "Content-Type": "application/x-www-form-urlencoded;charset=UTF-8"             },             transformRequest: [data => Qs.stringify(data)],             data: {}         }).then(response => {             let data = response.data;             return data.data.rows;         }).catch(error => {             console.log("error:", error);         });         context.store.commit('getCategoryList', categoryListData)         return;     },