Angular serve fails with esm

Question

I just created a fresh Angular universal app using Angular cli. it just works fine.

however, when I just add "type": "module" to package.json and serve again (with or without rebuilding the app again) it fails with the error Strict mode code may not include a with statement

reproduction steps 1- create a new Angular universal app ng new example && cd example && ng add @nguniversal/express-engine 2- run npm start -> npm run build:ssr && npm run serve:ssr (suceesed) 3- add "type": "module" and run npm run serve:ssr or npm start again (faild with Strict mode code may not include a with statement) 4- remove "type": "module" and run npm run serve:ssr without rebuilding the app (successed)

trials

• remove ServerModule from imports[] im app/app.server.module.ts
• remove export { renderModule } from '@angular/platform-server'; in app/main.server.ts
• run npm start to rebuild the app (failed with the same error)

reproduction