From ed26e551c5f54ead331d0187316269eddc3dff74 Mon Sep 17 00:00:00 2001
From: Oleksandr Miroshnichenko <omiroshnichenko@magento.com>
Date: Fri, 2 Nov 2018 13:05:17 +0200
Subject: [PATCH] #18562 - Internet Explorer 11: Edit customer in backend leads
 sometimes to a "loading circle" and error object does not support method
 "includes"

---
 app/code/Magento/Ui/view/base/web/js/form/element/country.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Ui/view/base/web/js/form/element/country.js b/app/code/Magento/Ui/view/base/web/js/form/element/country.js
index f64a80bf535ec..c75301018e190 100644
--- a/app/code/Magento/Ui/view/base/web/js/form/element/country.js
+++ b/app/code/Magento/Ui/view/base/web/js/form/element/country.js
@@ -49,7 +49,7 @@ define([
 
             if (!this.value()) {
                 defaultCountry = _.filter(result, function (item) {
-                    return item['is_default'] && item['is_default'].includes(value);
+                    return item['is_default'] && _.contains(item['is_default'], value);
                 });
 
                 if (defaultCountry.length) {