From a61991fcdb059995e6b5f3566637cb44357d6c45 Mon Sep 17 00:00:00 2001
From: Garfield69 <garfield69@outlook.com>
Date: Mon, 1 Apr 2019 08:35:22 +1300
Subject: [PATCH] custom.js: prevent null.trim error resolves #5000

---
 src/Jackett.Common/Content/custom.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Jackett.Common/Content/custom.js b/src/Jackett.Common/Content/custom.js
index 295b960d2..a56798638 100644
--- a/src/Jackett.Common/Content/custom.js
+++ b/src/Jackett.Common/Content/custom.js
@@ -1229,7 +1229,7 @@ function bindUIButtons() {
 }
 
 function proxyWarning(input) {
-    if (input.trim() != "")
+    if (input && input.trim() != "")
         $('#proxy-warning').show();
     else
         $('#proxy-warning').hide();