@ng-idle does not work with Angular 8

[vamcs]

Describe the bug
No observable is ever triggered, and the extension simply can't be used.

To Reproduce
Create an Angular 8 project and implement the example project.

In app.module.ts I provided the service with NgIdleModule.forRoot() in the imports array. And this is the constructor of app.component.ts:

constructor(private idle: Idle) {
    this.idle.setIdle(5);
    this.idle.setTimeout(5);
    this.idle.setInterrupts(DEFAULT_INTERRUPTSOURCES);
    this.idle.onIdleStart.subscribe(() => console.log('Gone idle'));
    this.idle.onIdleEnd.subscribe(() => console.log('Idle no more'));
    this.idle.onTimeoutWarning.subscribe((countdown: number) =>
      console.log(
        `You'll be logged out in ${countdown} seconds because of inactivity.`
      )
    );
    this.idle.onTimeout.subscribe(() => console.log('Timeout'));
  }

Expected behavior
The extension would work at all.

Please tell us about your environment

• Mobile or Desktop: Desktop
• Browser: Chrome or Firefox (latest stable)
• Version: 8.0.0-beta.4
• Angular version: 8.2.5
• NodeJS version: 10.16.3
• Language (TypeScript x.x, ES5, ES2015, etc.): TypeScript 3.5.3

[vamcs]

Of course, the problem was simple. I forgot to call idle.watch() to tell the extension to start running.