From 935cc3661224e8fc9ff88bf1b8e542b992b9cbb6 Mon Sep 17 00:00:00 2001
From: Jaifroid <egk10@cam.ac.uk>
Date: Sat, 4 Nov 2023 10:53:24 +0000
Subject: [PATCH] Return empty if image not found

---
 www/js/lib/images.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/www/js/lib/images.js b/www/js/lib/images.js
index 59462824..f1e3f12d 100644
--- a/www/js/lib/images.js
+++ b/www/js/lib/images.js
@@ -109,6 +109,11 @@ function extractImages (images, callback) {
         // Zimit files store URLs encoded!
         if (params.zimType === 'zimit') title = encodeURI(title);
         appstate.selectedArchive.getDirEntryByPath(title).then(function (dirEntry) {
+            if (!dirEntry) {
+                console.warn('Could not find DirEntry for image: ' + title);
+                checkBatch();
+                return;
+            }
             return appstate.selectedArchive.readBinaryFile(dirEntry, function (fileDirEntry, content) {
                 image.style.background = '';
                 var mimetype = dirEntry.getMimetype();