fix(ui): null pointer when scrolling

freiheit-com · Nov 19, 2024 · 6e96d18 · 6e96d18
1 parent 5571e1f
commit 6e96d18
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/services/frontend-service/src/ui/components/ServiceLane/ServiceLane.tsx b/services/frontend-service/src/ui/components/ServiceLane/ServiceLane.tsx
@@ -128,9 +128,10 @@ export const ServiceLane: React.FC<{
         if (document.getElementsByClassName('mdc-drawer-app-content').length !== 0) {
             document.getElementsByClassName('mdc-drawer-app-content')[0].addEventListener('scroll', handleScroll);
             return () => {
-                document
-                    .getElementsByClassName('mdc-drawer-app-content')[0]
-                    .removeEventListener('scroll', handleScroll);
+                const elem = document.getElementsByClassName('mdc-drawer-app-content')[0];
+                if (elem) {
+                    elem.removeEventListener('scroll', handleScroll);
+                }
             };
         }
     }, [appDetails, application, authHeader, searchParams]);