Vue Enabled webpack.js

webpack.config.js

const path = require('path');
const CopyPlugin = require('copy-webpack-plugin');
const ExtensionReloader  = require('webpack-extension-reloader');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const { VueLoaderPlugin } = require('vue-loader');

module.exports = {
  context: path.resolve(__dirname, 'src'),
  entry: {
    'newTab': './newTab.js',
    'background': './background.js'
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
  },
  resolve: {
    extensions: ['.js', '.vue'],
    alias: {
      '@': `${__dirname}/src`,
      vue$: 'vue/dist/vue.esm.js',
    },
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loaders: 'vue-loader',
      },
      {
        test: /\.js$/,
        loaders: 'babel-loader',
        exclude: /node_modules/,
      },
      // to read the css files
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader'],
      },
      // to read the sass style block in vue files. 
      {
        test: /\.sass$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
      // to read the scss style block in vue files. 
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
    ],
  },
  plugins: [
    new VueLoaderPlugin(),
    new MiniCssExtractPlugin(),
    new ExtensionReloader({
      manifest: path.resolve(__dirname,'src', "manifest.json"),
      entries: {
        background: 'background' // *REQUIRED
      }
    }),
    new CopyPlugin({
      patterns: [
        { from: 'manifest.json', to: 'manifest.json' },
        { from: 'newTab.html', to: 'newTab.html' }
      ],
    }),
  ],
};