Using History API with webpack-dev-server

webpack.config.js

module.exports = {
  // ...
  output: {
    // required for routing to work properly (https://stackoverflow.com/a/56601922/1142028)
    publicPath: '/',
  },
  devServer: {
    // required for routing to work properly (https://stackoverflow.com/a/61715643/1142028)
    historyApiFallback: true,
    // ...
  }
  // ...
}