我正在尝试使用 Webpack + Babel 在 IE >= 11 中运行具有 ES2015 功能的 React 应用程序。设置是自定义的，使用inferno-compat层，所以create-react-app这里没有使用。

但是 - 尽管对我的和 webpack 配置应用了最新babel-polyfill和babel-preset-env实践，当我尝试使用 IE11 访问应用程序时.babelrc，我的bundle.js 中仍然出现SCRIPT1002: Syntax 错误。

当我按照 IE 控制台中的语法错误参考进行操作时，这是生成的 bundle.js 中存在冲突的部分（特别是箭头函数）：

function add(x, y) {
  if (y === undefined) {
    return yHolder => add(x, yHolder);
  }

  return x + y;
}

这些是 my 中的相关依赖项package.json：

"dependencies": {
  "inferno-redux": "^3.10.1",
  "react": "^15.6.0",
  "react-dom": "^15.6.0",
  "react-ga": "^2.2.0",
  "react-swipeable": "^4.1.0",
  "redux": "^3.7.2",
  "redux-saga": "^0.16.0",
  "regenerator-runtime": "^0.11.0"
},
"devDependencies": {
  //... stuff

  "babel-cli": "^6.26.0",
  "babel-core": "^6.25.0",
  "babel-eslint": "^7.2.3",
  "babel-loader": "^7.1.1",
  "babel-plugin-inferno": "^3.2.0",
  "babel-plugin-module-resolver": "^2.7.1",
  "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
  "babel-plugin-transform-es2015-spread": "^6.22.0",
  "babel-plugin-transform-regenerator": "^6.26.0",
  "babel-plugin-transform-runtime": "^6.23.0",
  "babel-polyfill": "^6.26.0",
  "babel-preset-env": "^1.6.1",
  "babel-preset-es2015": "^6.24.1",
  "babel-preset-flow": "^6.23.0",
  "babel-preset-react": "^6.24.1",

  //... some more stuff

  "webpack": "^3.8.1",
  "webpack-bundle-analyzer": "^2.9.1",
  "webpack-dev-middleware": "^1.12.2",
  "webpack-dev-server": "^2.9.5",
  "webpack-manifest-plugin": "^1.3.2",
  "webpack-merge": "^4.1.1",
}

这是我的.babelrc：

{
  "presets": 
    [
    "react", 
    "flow",
    "es2015",
    [
      "env", { 
        "modules": "commonjs",
        "targets": {
          "browsers": ["last 2 versions", "ie >= 11"]
        }
      }
    ]
  ]
}

我包括babel-polyfill在我的webpack.base.config.js这里：

// ... stuff
entry: {
  index: ['babel-polyfill', './index.js'],
},
// ... more stuff

有什么想法让它在 IE11 中运行吗？