Disable X-Powered-By in nestjs does not work

Question

I want to disable X-Powered-By in nestjs like the following, but it does not work.

main.ts:

async function bootstrap() {
    const logger = new Logger('bootstrap') 
    const app = await NestFactory.create<NestExpressApplication>(AppModule);
  
    app.disable('X-Powered-By') // this line
    ...
    
    const PORT = process.env.PORT
    await app.listen(PORT);
    logger.log(`Application is start on port : ${PORT}`)
  }
  
  bootstrap();

After disabling the X-Powered-By header, in the next requests, that X-Powered-By header still exists.

Where am I doing something wrong?

Answer 1

If app.disable('x-powered-by') does not work, you can try/fix it with:

app.getHttpAdapter().getInstance().disable('x-powered-by');

Answer 2

If you are using TypeScript and you get an error in your IDE saying Property 'disable' does not exist on type 'INestApplication', then specify the app type in your NestFactory.create call.

Your code should look like below, and the error on the app.disable call will be gone.

const app = await NestFactory.create<NestExpressApplication>(AppModule)

app.disable('x-powered-by')