Clear the error after 25 seconds.

src/src/app/app.component.ts

@@ -49,6 +49,9 @@ export class AppComponent extends SubscriberBase implements AfterViewInit {
       this.error$.subscribe((err) => {
         if (err) {
           this.snackBar.open(`Oh no! ${err.msg}`, 'Dismiss  Error');
+          setTimeout(() => {
+            this.snackBar.dismiss(); // dismiss if its still there after 25 seconds.
+          }, 25 * 1000);
         }
       })
     );