From 538bd0a62b745a9576cb6a2431ab385c5ff45ba1 Mon Sep 17 00:00:00 2001
From: Iryna Lagno <ilagno@ebay.com>
Date: Fri, 28 Aug 2015 11:40:56 +0300
Subject: [PATCH] MAGETWO-42164: Login Modal Window popup duplicates on all
 pages

---
 .../view/frontend/web/js/view/authentication-popup.js        | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/code/Magento/Customer/view/frontend/web/js/view/authentication-popup.js b/app/code/Magento/Customer/view/frontend/web/js/view/authentication-popup.js
index dfef07a4b87af..99aec7dc7cd3e 100644
--- a/app/code/Magento/Customer/view/frontend/web/js/view/authentication-popup.js
+++ b/app/code/Magento/Customer/view/frontend/web/js/view/authentication-popup.js
@@ -39,7 +39,10 @@ define(
 
             /** Init popup login window */
             setModalElement: function (element) {
-                authenticationPopup.createPopUp(element);
+                // create pop up if it doesn't exist
+                if (authenticationPopup.modalWindow == null) {
+                    authenticationPopup.createPopUp(element)
+                }
             },
 
             /** Is login form enabled for current customer */