Does RxJS have a way to handle errors that were not caught by subscriber?

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RxJS allows to subscribe to a source with onNext, onError, onComplete.

I am looking for a way to construct an observable which allow users to handle errors with onError, but if there is error that is unhandled, I can show globally growl (a notification from primeng library).

Is there a nice way to catch unhandled in subscription errors.

Update1: I have noticed that Angular2 has a central ErrorHandler (Module level). The question is to attach it to UI somehow. https://angular.io/docs/ts/latest/api/core/index/ErrorHandler-class.html

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Mark van Straten On

If you do not subscribe to the error event it will bubble. You can wrap your stream with try..catch to catch these to prevent your application from crashing.

try {
  Rx.Observable.throw(new Error('not caught')).subscribe();  
}
catch(err) {
  console.log('caught', err);
}