From 57ed3c3bb3781d8816ba78b8935b8f4e91ffd657 Mon Sep 17 00:00:00 2001
From: Volodymyr Kotulskiy <kotulskiy@mlsdev.com>
Date: Fri, 13 May 2016 15:12:20 +0300
Subject: [PATCH] You have ti allow users to use Backspace, Delete and Arrow
 keys even if there is 4 digits in the field

---
 src/format.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/format.js b/src/format.js
index 68455cf..46d9944 100644
--- a/src/format.js
+++ b/src/format.js
@@ -177,8 +177,12 @@ angular.module('angularPayments')
   _formatCVC = function(e){
     $target = angular.element(e.currentTarget);
     digit = String.fromCharCode(e.which);
-    
-    if (!/^\d+$/.test(digit) && !e.meta && e.keyCode >= 46) {
+
+    if (e.keyCode == 46 || e.keyCode == 8||(e.keyCode >=37 && e.keyCode <=40)) {
+        return;
+    }
+
+    if (!/^\d+$/.test(digit) && !e.meta && e.which >= 46) {
       e.preventDefault();
       return;
     }