iOS 9 中的 Vue 3：意外的关键字“const”。严格模式不支持 const 声明

Question

我的 Vue 3 应用无法在 Safari 9 中运行。控制台中出现此错误：

Unexpected keyword 'const'. Const declarations are not supported in strict mode.

我的 package.json：

{
  "name": "test",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "@babel/polyfill": "^7.12.1",
    "@babel/preset-env": "^7.12.1",
    "@babel/runtime-corejs2": "^7.12.5",
    "axios": "^0.21.0",
    "bootstrap": "^4.5.3",
    "core-js": "^3.6.5",
    "vue": "^3.0.0",
    "vue-axios": "^3.1.3",
    "vue-slider-component": "^4.0.0-beta.3"
  },
  "devDependencies": {
    "@vue/babel-preset-app": "^4.5.8",
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/compiler-sfc": "^3.0.2",
    "babel-eslint": "^10.1.0",
    "eslint": "^6.7.2",
    "eslint-plugin-vue": "^7.0.0-0",
    "sass": "^1.28.0",
    "sass-loader": "^10.0.5"
  },
  "eslintConfig": {
    "rules": {},
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/vue3-essential",
      "eslint:recommended"
    ],
    "parserOptions": {
      "parser": "babel-eslint"
    }
  },
  "browserslist": [
    "last 2 versions",
    "safari >= 7",
    "ios_saf >= 8",
    "chrome >= 52"
  ]
}

我的 babel.config.js：

module.exports = {
  presets: [
    ['@vue/babel-preset-app']
  ]
}

我知道错误可能是由未转译的依赖项引起的，但我尝试在 vue.config.js 中通过transpileDependencies 选项转译它们。但也不行。

Answer 1

所以这是我的问题的答案：https://github.com/vuejs/vue-cli/issues/6041#issuecomment-722966178

Vue 3 还不支持 iOS 9。