extra-webpack.config.js

const singleSpaAngularWebpack = require('single-spa-angular/lib/webpack').default;

module.exports = (config, options) => {
  const singleSpaWebpackConfig = singleSpaAngularWebpack(config, options);

  singleSpaWebpackConfig.devServer = {
    headers: {
      "Access-Control-Allow-Origin": "*",
    },
    historyApiFallback: true,
    hot: false,
    liveReload: false,
    port: 4200,
    host: '0.0.0.0',
    allowedHosts: 'all',
    client: {
      webSocketURL: 'auto://0.0.0.0:0/ws',
    }
  };

  return singleSpaWebpackConfig;
};