From 9118349520d3ece3771e4764023f5fb90b9b12ec Mon Sep 17 00:00:00 2001
From: roykho <roykho77@gmail.com>
Date: Wed, 24 Mar 2021 09:59:20 -0700
Subject: [PATCH] Remove duplicate notices from cart during ajax updates closes
 #28914

---
 assets/js/frontend/cart.js | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/assets/js/frontend/cart.js b/assets/js/frontend/cart.js
index b4455119c08..d3291238c8e 100644
--- a/assets/js/frontend/cart.js
+++ b/assets/js/frontend/cart.js
@@ -57,6 +57,28 @@ jQuery( function( $ ) {
 		$node.removeClass( 'processing' ).unblock();
 	};
 
+	/**
+	 * Removes duplicate notices.
+	 *
+	 * @param {JQuery Object} notices
+	 */
+	var remove_duplicate_notices = function( notices ) {
+		var seen = [];
+		var new_notices = notices;
+
+		notices.each( function( index ) {
+			var text = $( this ).text();
+
+			if ( 'undefined' === typeof seen[ text ] ) {
+				seen[ text ] = true;
+			} else {
+				new_notices.splice( index, 1 );
+			}
+		} );
+
+		return notices;
+	};
+
 	/**
 	 * Update the .woocommerce div with a string of html.
 	 *
@@ -67,7 +89,7 @@ jQuery( function( $ ) {
 		var $html       = $.parseHTML( html_str );
 		var $new_form   = $( '.woocommerce-cart-form', $html );
 		var $new_totals = $( '.cart_totals', $html );
-		var $notices    = $( '.woocommerce-error, .woocommerce-message, .woocommerce-info', $html );
+		var $notices    = remove_duplicate_notices( $( '.woocommerce-error, .woocommerce-message, .woocommerce-info', $html ) );
 
 		// No form, cannot do this.
 		if ( $( '.woocommerce-cart-form' ).length === 0 ) {