From 101485a41fb2ea326496142d9ccb368522cbe0f0 Mon Sep 17 00:00:00 2001
From: Takeshi Umeda <noel.yoshiba@gmail.com>
Date: Sun, 19 Jul 2020 20:09:47 +0900
Subject: [PATCH] Fix mimetype returning nil (#14356)

---
 lib/paperclip/media_type_spoof_detector_extensions.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/paperclip/media_type_spoof_detector_extensions.rb b/lib/paperclip/media_type_spoof_detector_extensions.rb
index 363934d8d13..43337cc6884 100644
--- a/lib/paperclip/media_type_spoof_detector_extensions.rb
+++ b/lib/paperclip/media_type_spoof_detector_extensions.rb
@@ -18,7 +18,7 @@ module Paperclip
       @type_from_mime_magic ||= begin
         begin
           File.open(@file.path) do |file|
-            MimeMagic.by_magic(file)&.type
+            MimeMagic.by_magic(file)&.type || ''
           end
         rescue Errno::ENOENT
           ''