fix: scrollbars may not exist

google · Aug 3, 2023 · c07c31a · c07c31a
1 parent d8cf9b2
commit c07c31a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/plugins/workspace-backpack/src/backpack.js b/plugins/workspace-backpack/src/backpack.js
@@ -679,7 +679,7 @@ export class Backpack extends Blockly.DragTarget {
     }
     const jsons = this.contents_.map((text) => JSON.parse(text));
     this.flyout_.show(jsons);
-    this.workspace_.scrollbar.setVisible(false);
+    this.workspace_.scrollbar?.setVisible(false);
     Blockly.Events.fire(new BackpackOpen(true, this.workspace_.id));
   }
 
@@ -703,7 +703,7 @@ export class Backpack extends Blockly.DragTarget {
       return;
     }
     this.flyout_.hide();
-    this.workspace_.scrollbar.setVisible(true);
+    this.workspace_.scrollbar?.setVisible(true);
     Blockly.Events.fire(new BackpackOpen(false, this.workspace_.id));
   }