If this application was built in development mode, please check if the window.ng global object is available in your
application. If it is missing, then something is preventing Angular from running in development mode properly.
enableProdMode() in your application? Read more about enableProdMode() on angular.dev.
"optimization": true set in your angular.json? Read more about optimization configuration on angular.dev.
"defaultConfiguration": "production" set in your angular.json? Read more about default configurations on angular.dev.
If you are still experiencing problems, you can open an issue with a reproduction on our issue tracker.