adding drop handling code for scrapbookBox

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/views/InkingStroke.tsx b/src/client/views/InkingStroke.tsx
index f555808ef..0a49ea28e 100644
--- a/src/client/views/InkingStroke.tsx
+++ b/src/client/views/InkingStroke.tsx
@@ -245,7 +245,7 @@ export class InkingStroke extends ViewBoxAnnotatableComponent<FieldViewProps>()
      * factor for converting between ink and screen space.
      */
     inkScaledData = () => {
-        const inkData = Cast(this.dataDoc[this.fieldKey], InkField, Cast(this.layoutDoc[this.fieldKey], InkField, null))?.inkData ?? [];
+        const inkData = Cast(this.dataDoc[this.fieldKey], InkField, Cast(this.layoutDoc[this.fieldKey], InkField, null) ?? null)?.inkData ?? [];
         const inkStrokeWidth = NumCast(this.layoutDoc.stroke_width, 1);
         const inkTop = Math.min(...inkData.map(p => p.Y)) - inkStrokeWidth / 2;
         const inkBottom = Math.max(...inkData.map(p => p.Y)) + inkStrokeWidth / 2;