From 5e91cff3cdb0a85821ff4f04f2e57ad0203ed63f Mon Sep 17 00:00:00 2001
From: Yaron Pri-Gal <yaprigal@microsoft.com>
Date: Mon, 5 Aug 2019 10:45:48 +0300
Subject: [PATCH] Fix uppercase issue

Fixing issue when the file name extension is in uppercase like: "JPG".
---
 ImageFunctions/Thumbnail.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ImageFunctions/Thumbnail.cs b/ImageFunctions/Thumbnail.cs
index 7a0574d..f176da3 100644
--- a/ImageFunctions/Thumbnail.cs
+++ b/ImageFunctions/Thumbnail.cs
@@ -43,7 +43,7 @@ private static IImageEncoder GetEncoder(string extension)
         {
             IImageEncoder encoder = null;
 
-            extension = extension.Replace(".", "");
+            extension = extension.Replace(".", "").ToLower();
 
             var isSupported = Regex.IsMatch(extension, "gif|png|jpe?g", RegexOptions.IgnoreCase);