Webpack / Babel loader "eval" issue

babel.config.js

module.exports = {
  presets: [['@babel/preset-env']],
  plugins: [['@babel/plugin-transform-runtime', { absoluteRuntime: true }]]
};

index.js

window.f = (o) => {
	if (typeof o !== 'object') return eval(o);
};

webpack.config.js

module.exports = {
  entry: './index.js',
  mode: 'production',
  devtool: 'source-map',
  module: {
    rules: [
      {
       test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader"
        }
      }
    ]
  }
};