1 files changed, 1 insertions, 1 deletions
diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index 38d0ecaa6..c1235163b 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -379,7 +379,7 @@ export namespace DragManager {
             if (docsBeingDragged.length) {
                 const pdfBox = dragElement.getElementsByTagName("canvas");
                 const pdfBoxSrc = ele.getElementsByTagName("canvas");
-                Array.from(pdfBox).map((pb, i) => pb.getContext('2d')!.drawImage(pdfBoxSrc[i], 0, 0));
+                Array.from(pdfBox).filter(pb => pb.width && pb.height).map((pb, i) => pb.getContext('2d')!.drawImage(pdfBoxSrc[i], 0, 0));
             }
             [dragElement, ...Array.from(dragElement.getElementsByTagName('*'))].forEach(ele =>
                 ele.hasAttribute("style") && ((ele as any).style.pointerEvents = "none"));