From 1f5021d76ac12f44e378ceac72b6333772e4edab Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sat, 22 Aug 2020 18:09:17 +0200
Subject: [PATCH] Prevent errors if `PDFDocumentProxy.saveDocument` is called
 without the `annotationStorage` parameter (PR 12241 follow-up)

Obviously it doesn't make sense to call that method without providing an `AnnotationStorage`-instance, however we should ensure that doing so won't cause errors.
Hence we need to check that `annotationStorage` is actually defined, before attempting to call its `resetModified` method.
---
 src/display/api.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/display/api.js b/src/display/api.js
index 453e073a5..f9a295dcc 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -2544,7 +2544,9 @@ class WorkerTransport {
         filename: this._fullReader ? this._fullReader.filename : null,
       })
       .finally(() => {
-        annotationStorage.resetModified();
+        if (annotationStorage) {
+          annotationStorage.resetModified();
+        }
       });
   }