From 718658e8373addea88dbe6edcb65195f9fd6edef Mon Sep 17 00:00:00 2001
From: Owen Conti <owen@ohseemedia.com>
Date: Mon, 3 Jul 2017 18:12:39 -0600
Subject: [PATCH] Fix for non-required inputs

---
 src/core/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/utils.js b/src/core/utils.js
index ddb58dc4..448a8e9c 100644
--- a/src/core/utils.js
+++ b/src/core/utils.js
@@ -463,7 +463,7 @@ export const validateInteger = ( val ) => {
 }
 
 export const validateFile = ( val ) => {
-  if ( !(val instanceof win.File) ) {
+  if ( val && !(val instanceof win.File) ) {
     return "Value must be a file"
   }
 }