Query params not available in SSR

[LeVraiSylvain]

Which @angular/* package(s) are the source of the bug?

Don't known / other

Is this a regression?

Yes

Description

Steps to reproduce:

1. Create an app called dummyapp using Angular CLI version 19.2.5 with the --ssr option (ng new dummyapp --ssr).

2. In the app.component.ts, add the following code :

import { Component, OnInit } from '@angular/core';
import { ActivatedRoute, RouterOutlet } from '@angular/router';

@Component({
  selector: 'app-root',
  imports: [RouterOutlet],
  templateUrl: './app.component.html',
  styleUrl: './app.component.scss'
})
export class AppComponent implements OnInit {
  title = 'dummyapp';

/**
 *
 */
constructor(
  private route: ActivatedRoute
) {}

  ngOnInit(): void {
    this.route.queryParams.subscribe(async params => {
     this.title = params['title'];
    });
  }
}

3. Run ng serve
4. Start your browser and disable Javascript
5. Navigate to http://localhost:4200/?title=MyTitle => It should work correcly
6. Stop ng serve
7. Run ng build && yarn serve:ssr:dummyapp
8. Make sure Javascript is still disable in your browser
9. Navigate to http://localhost:4000/?title=MyTitle => It does not work correcly. The title from the query string is not retrieved.

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 19.2.5
Node: 22.14.0

Anything else?

No response

[alan-agius4]

This behavior is expected because the page is being prerendered when running ng build && yarn serve:ssr:dummyapp. To disable prerendering, set "prerender": false in your angular.json.

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