From dce91cf8c8d01135c10058614551f2f7f70a633c Mon Sep 17 00:00:00 2001
From: saltpi <endpne@gmail.com>
Date: Sat, 14 Feb 2026 05:57:23 -0500
Subject: [PATCH] Backport pull request #16116 from jellyfin/release-10.11.z

Fix TMDB image URLs missing size parameter

Original-merge: caa05c1bf2c55053a65091886f0ddf78865fc72c

Merged-by: Bond-009 <bond.009@outlook.com>

Backported-by: Bond_009 <bond.009@outlook.com>
---
 MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
index fedf345988..abaca65ff3 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
@@ -518,7 +518,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
                 return null;
             }
 
-            return _tmDbClient.GetImageUrl(size, path, true).ToString();
+            // Use "original" as default size if size is null or empty to prevent malformed URLs
+            var imageSize = string.IsNullOrEmpty(size) ? "original" : size;
+
+            return _tmDbClient.GetImageUrl(imageSize, path, true).ToString();
         }
 
         /// <summary>