webpack.config.js

const webpack = require("webpack");
const Uglify = require("uglifyjs-webpack-plugin");

module.exports = {
  context: __dirname,
  entry: "./js/main.js",
  output: {
    path: __dirname,
    filename: "./dist/dist.js"
  },
  node: {
    fs: "empty",
    net: "empty",
    tls: "empty"
  },
  mode: "production",
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules\/(?!(bech32|ripple-lib))/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env"],
            plugins: ["@babel/plugin-syntax-dynamic-import"]
          }
        }
      },
      {
        test: /\.scss$/,
        use: [
          {
            loader: "style-loader" // creates style nodes from JS strings
          },
          {
            loader: "css-loader", // translates CSS into CommonJS
            options: {
              minimize: true
            }
          },
          {
            loader: "sass-loader" // compiles Sass to CSS
          }
        ]
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: "style-loader" // creates style nodes from JS strings
          },
          {
            loader: "css-loader" // translates CSS into CommonJS
          }
        ]
      },
      {
        test: /\.html$/,
        use: "vue-template-loader"
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif|m4a)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              outputPath: "dist/assets/"
            }
          }
        ]
      }
    ]
  },
  optimization: {
    minimizer: [
      new Uglify({
        uglifyOptions: {
          mangle: {
            safari10: true,
            reserved: [
              //bitcoinjs-lib
              "BigInteger",
              "ECPair",
              "Point",
              //ripple-lib
              "_",
              "RippleError",
              "RippledError",
              "UnexpectedError",
              "LedgerVersionError",
              "ConnectionError",
              "NotConnectedError",
              "DisconnectedError",
              "TimeoutError",
              "ResponseFormatError",
              "ValidationError",
              "NotFoundError",
              "MissingLedgerHistoryError",
              "PendingLedgerVersionError"
            ]
          }
        }
      })
    ]
  }
};