ngZone on Observable

example.js

    return Observable.create(observer => {
      this.ngZone.run(() => {
        params.callback = (result) => {
          if (result.status === 'FAIL') {
            observer.error(result.errorDetails || result.errorMessage);
          } else {
            observer.next(result);
            observer.complete();
          }

        };

        gigya.accounts.login(params);
      });
    });