From ce47c0248fb5a208495017893c42a7ed02be4f8e Mon Sep 17 00:00:00 2001
From: Luke Towers <github@luketowers.ca>
Date: Mon, 7 Sep 2020 15:23:00 -0600
Subject: [PATCH] Fix issue displaying protected file thumbnails when width or
 height is empty.

Related #5267
---
 modules/system/models/File.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/system/models/File.php b/modules/system/models/File.php
index a373cb363..980da0312 100644
--- a/modules/system/models/File.php
+++ b/modules/system/models/File.php
@@ -26,6 +26,9 @@ class File extends FileBase
     public function getThumb($width, $height, $options = [])
     {
         $url = '';
+        $width = !empty($width) ? $width : 0;
+        $height = !empty($height) ? $height : 0;
+
         if (!$this->isPublic() && class_exists(Files::class)) {
             $options = $this->getDefaultThumbOptions($options);
             // Ensure that the thumb exists first