【报Bug】vue3版本vite使用了@vitejs/plugin-legacy兼容老版本浏览器， 打包出来的index-xx.js 含有import()

操作步骤：

vite.config.ts

import { defineConfig } from 'vite'  
import uni from '@dcloudio/vite-plugin-uni'  
import DefineOptions from 'unplugin-vue-define-options/vite'  
import legacy from '@vitejs/plugin-legacy'  

// https://vitejs.dev/config/  
export default defineConfig({  
  plugins: [  
    uni(),  
    legacy({  
      targets: ['defaults', 'ie >= 11', 'chrome >= 52'],  
      additionalLegacyPolyfills: ['regenerator-runtime/runtime']  
    }),  
    DefineOptions(),  
  ],  
  transpileDependencies: ['@dcloudio/uni-ui'],  
})  

pages.json

{  
  "easycom": {  
    "autoscan": true,  
    "custom": {  
      // uni-ui 规则如下配置  
      "ui-(.*)": "cb-mobile-ui/components/ui-$1/ui-$1.vue",  
      "^(?!z-paging-refresh|z-paging-load-more)z-paging(.*)": "z-paging/components/z-paging$1/z-paging$1.vue",  
      "cb-(.*)": "cb-biz-ui/components/cb-$1/cb-$1.vue"  
    }  
  },  
  "pages": [  
    //pages数组中第一项表示应用启动页，参考：https://uniapp.dcloud.io/collocation/pages  
    {  
      "path": "pages/home/index",  
      "style": {  
        "navigationBarTitleText": "本地生活",  
        "navigationStyle": "custom",  
        "app-plus": {  
          "titleNView": false  
        }  
      }  
    },  
    {  
      "path": "pages/party/index",  
      "style": {  
        "navigationBarTitleText": "吃喝玩乐",  
        "navigationStyle": "custom",  
        "app-plus": {  
          "titleNView": false  
        }  
      }  
    },  
    {  
      "path": "pages/points-center/index",  
      "style": {  
        "navigationBarTitleText": "积分中心",  
        "navigationStyle": "custom",  
        "app-plus": {  
          "titleNView": false  
        }  
      }  
    },  
    {  
      "path": "pages/mall-rebate/index",  
      "style": {  
        "navigationBarTitleText": "商场返利",  
        "navigationStyle": "custom",  
        "app-plus": {  
          "titleNView": false  
        }  
      }  
    },  
    {  
      "path": "pages/mine/index",  
      "style": {  
        "navigationBarTitleText": "我的",  
        "navigationStyle": "custom",  
        "app-plus": {  
          "titleNView": false  
        }  
      }  
    }  
  ],  
  "globalStyle": {  
    "navigationBarTextStyle": "black",  
    "navigationBarTitleText": " ",  
    "navigationBarBackgroundColor": "#fff",  
    "backgroundColor": "#f8f8f9"  
  },  
  "subPackages": [  
    {  
      "root": "subpackages/module",  
      "pages": [  
        {  
          "path": "certificate/index",  
          "style": {  
            "navigationBarTitleText": "营业资质",  
            // "navigationStyle": "custom",  
            "app-plus": {  
              "titleNView": false  
            }  
          }  
        }  
      ]  
    },  
    {  
      "root": "subpackages/app",  
      "pages": [  
        {  
          "path": "village/index",  
          "style": {  
            "navigationBarTitleText": " ",  
            // "navigationStyle": "custom",  
            "app-plus": {  
              "titleNView": false  
            }  
          }  
        }  
      ]  
    },  
    {  
      "root": "subpackages/business",  
      "pages": [  
        {  
          "path": "clock-in/index",  
          "style": {  
            "navigationBarTitleText": "打开",  
            "app-plus": {  
              "titleNView": false  
            }  
          }  
        }  
      ]  
    }  
  ],  
  "tabBar": {  
    "selectedColor": "#FF524F",  
    "borderStyle": "black",  
    "backgroundColor": "#ffffff",  
    "color": "#0D111B",  
    "height": "75px",  
    "fontSize": "10px",  
    "iconWidth": "34px",  
    "spacing": "8px",  
    "list": [  
      {  
        "pagePath": "pages/home/index",  
        "text": "本地生活",  
        "iconPath": "/static/images/local-life.png",  
        "selectedIconPath": "/static/images/local-life_ac.png",  
        "imgWidth": 32,  
        "imgHeight": 34  
      },  
      {  
        "pagePath": "pages/party/index",  
        "text": "吃喝玩乐",  
        "iconPath": "/static/images/party.png",  
        "selectedIconPath": "/static/images/party_ac.png",  
        "imgWidth": 34,  
        "imgHeight": 34  
      },  
      {  
        "pagePath": "pages/points-center/index",  
        "text": "积分中心",  
        "iconPath": "/static/images/mall-rebate.png",  
        "selectedIconPath": "/static/images/mall-rebate_ac.png",  
        "isDot": true,  
        "num": 1,  
        "imgWidth": 46,  
        "imgHeight": 46  
      },  
      {  
        "pagePath": "pages/mall-rebate/index",  
        "text": "商城返利",  
        "iconPath": "/static/images/mall-rebate.png",  
        "selectedIconPath": "/static/images/mall-rebate_ac.png",  
        "imgWidth": 34,  
        "imgHeight": 34  
      },  
      {  
        "pagePath": "pages/mine/index",  
        "text": "我的",  
        "iconPath": "/static/images/home-mine.png",  
        "selectedIconPath": "/static/images/home-mine_ac.png",  
        "imgWidth": 31,  
        "imgHeight": 39  
      }  
    ]  
  }  
}  

预期结果：

兼容import()语法。

实际结果：

产出的index-xx.js含有import()