docs-bug(FocusMonitor): Emits inside NgZone in implementation but docs states otherwise

[robmv]

Documentation Feedback

Checking the implementation, I observe that the FocusMonitor emits inside NgZone:

components/src/cdk/a11y/focus-monitor/focus-monitor.ts

Lines 459 to 463 in 9494ff2

	private _emitOrigin(info: MonitoredElementInfo, origin: FocusOrigin) {
	if (info.subject.observers.length) {
	this._ngZone.run(() => info.subject.next(origin));
	}
	}

And confirmed checking NgZone.isInAngularZone() in a subscription.

But documentations says:

Note: currently the FocusMonitor emits on the observable outside of the Angular zone. Therefore, if you markForCheck in the subscription you must put yourself back in the Angular zone.

Affected documentation page

https://material.angular.io/cdk/a11y/overview#focusmonitor