{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "https://localhost:44328/",
      "sslPort": 44328
    }
    ....
}

           app.UseWebpackDevMiddleware(new WebpackDevMiddlewareOptions
                {
                    HotModuleReplacement = true,                
                    ConfigFile = "config/webpack.config.js"
                });