From 15c9ec45abd5b6df153dd3e88b9fb7d6b8ddc5ef Mon Sep 17 00:00:00 2001
From: TheBeastLT <pauliox@beyond.lt>
Date: Fri, 18 Sep 2020 23:44:38 +0200
Subject: [PATCH] [addon] fixes extension check fn npe

---
 addon/lib/extension.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/addon/lib/extension.js b/addon/lib/extension.js
index d65716a..458ec8b 100644
--- a/addon/lib/extension.js
+++ b/addon/lib/extension.js
@@ -65,7 +65,7 @@ function isArchive(filename) {
 }
 
 function isExtension(filename, extensions) {
-  const extensionMatch = filename.match(/\.(\w{2,4})$/);
+  const extensionMatch = filename && filename.match(/\.(\w{2,4})$/);
   return extensionMatch && extensions.includes(extensionMatch[1].toLowerCase());
 }