From 8e6515be2c8cc2b335002ab8913e9dcdd7873204 Mon Sep 17 00:00:00 2001
From: Thomas Piccirello <8296030+Piccirello@users.noreply.github.com>
Date: Mon, 1 Apr 2024 05:15:30 -0700
Subject: [PATCH] WebUI: Fix error when category doesn't exist

This prevents hitting a TypeError when the category stored in localstorage does not exist. The behavior for a nonexistent category now mirrors that of a nonexistent tag or filter - no option is selected and no torrents are shown.

Closes #20623.
PR #20638.
---
 src/webui/www/private/scripts/dynamicTable.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/webui/www/private/scripts/dynamicTable.js b/src/webui/www/private/scripts/dynamicTable.js
index 923d42a23..c01d72cd7 100644
--- a/src/webui/www/private/scripts/dynamicTable.js
+++ b/src/webui/www/private/scripts/dynamicTable.js
@@ -1400,10 +1400,13 @@ window.qBittorrent.DynamicTable = (function() {
                             return false;
                     }
                     else {
-                        const selectedCategoryName = category_list.get(categoryHash).name + "/";
-                        const torrentCategoryName = row['full_data'].category + "/";
-                        if (!torrentCategoryName.startsWith(selectedCategoryName))
-                            return false;
+                        const selectedCategory = category_list.get(categoryHash);
+                        if (selectedCategory !== undefined) {
+                            const selectedCategoryName = selectedCategory.name + "/";
+                            const torrentCategoryName = row['full_data'].category + "/";
+                            if (!torrentCategoryName.startsWith(selectedCategoryName))
+                                return false;
+                        }
                     }
                     break;
             }