From 8895ea8bc50b9b69518469e24e66fad58b6bc2e7 Mon Sep 17 00:00:00 2001
From: Bob Zeleznik <zzzman@gmail.com>
Date: Wed, 8 Apr 2020 14:38:56 -0400
Subject: fixed link previews to work with regions on PDFs, images etc,

---
 src/client/views/pdf/PDFViewer.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/client/views/pdf')

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 90cd64f3c..f93c1fa97 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -164,7 +164,7 @@ export class PDFViewer extends DocAnnotatableComponent<IViewerProps, PdfDocument
     }
 
     componentWillUnmount = () => {
-        this._reactionDisposer && this._reactionDisposer();
+        this._reactionDisposer?.();
         this._scrollTopReactionDisposer?.();
         this._annotationReactionDisposer?.();
         this._filterReactionDisposer?.();
-- 
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