Fix memory leak in demo site (#921)

* Fix memory leak in demo site * fix
microsoft · Apr 22, 2022 · 4b6ce6e · 4b6ce6e
1 parent 91ae56f
commit 4b6ce6e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/demo/scripts/controls/sidePane/SidePane.tsx b/demo/scripts/controls/sidePane/SidePane.tsx
@@ -28,6 +28,10 @@ export default class SidePane extends React.Component<SidePaneProps, SidePaneSta
         this.updateStateFromHash();
     }
 
+    componentWillUnmount() {
+        window.removeEventListener('hashchange', this.updateStateFromHash);
+    }
+
     render() {
         let className = (this.props.className || '') + ' ' + styles.sidePane;
         return (