Starting to see the light

src/app/_services/alert.service.ts

@@ -47,6 +47,7 @@ export class AlertService {
     }
  
     alert(type: AlertType, message: string, keepAfterRouteChange = false) {
+        this.clear();
         this.keepAfterRouteChange = keepAfterRouteChange;
         this.subject.next(<Alert>{ type: type, message: message });
     }