fix(test): Fix possible sanity test bug

box · Dec 13, 2019 · 53dc19e · 53dc19e
1 parent 7472809
commit 53dc19e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lib/ThumbnailsSidebar.js b/src/lib/ThumbnailsSidebar.js
@@ -311,7 +311,7 @@ class ThumbnailsSidebar {
      * @return {Promise} - promise reolves with the image HTMLElement or null if generation is in progress
      */
     createThumbnailImage(itemIndex) {
-        const cacheEntry = this.thumbnailImageCache.get(itemIndex);
+        const cacheEntry = this.thumbnailImageCache && this.thumbnailImageCache.get(itemIndex);
 
         // If this thumbnail has already been cached, use it
         if (cacheEntry && cacheEntry.image) {