webpack.common.js

const isProd = process.env.NODE_ENV === 'production';
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  mode: isProd ? 'production' : 'development',
  devtool: isProd ? false : 'inline-source-map',
  entry: {
    content: './src/content.ts',
    popup: './src/popup.ts',
  },
  optimization: {
    minimize: isProd,
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
    ],
  },
  resolve: {
    extensions: ['.ts', '.tsx', '.js'],
  },
};