From 7e921a4a3a4b9f7d467b22272b477a06c638f04e Mon Sep 17 00:00:00 2001
From: alistair3149 <alistair31494322@gmail.com>
Date: Sun, 2 Jun 2024 14:00:36 -0400
Subject: [PATCH] fix: set tabindex -1 on hidden tabs

---
 modules/ext.tabberNeue/ext.tabberNeue.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/ext.tabberNeue/ext.tabberNeue.js b/modules/ext.tabberNeue/ext.tabberNeue.js
index d3fb143..5a1ee38 100644
--- a/modules/ext.tabberNeue/ext.tabberNeue.js
+++ b/modules/ext.tabberNeue/ext.tabberNeue.js
@@ -164,7 +164,8 @@ class TabberAction {
 				tabpanelVisibilityUpdates.push( {
 					element: tabpanel,
 					attributes: {
-						'aria-hidden': 'false'
+						'aria-hidden': 'false',
+						tabindex: '0'
 					}
 				} );
 				if ( typeof resizeObserver !== 'undefined' && resizeObserver ) {
@@ -174,7 +175,8 @@ class TabberAction {
 				tabpanelVisibilityUpdates.push( {
 					element: tabpanel,
 					attributes: {
-						'aria-hidden': 'true'
+						'aria-hidden': 'true',
+						tabindex: '-1'
 					}
 				} );
 				if ( typeof resizeObserver !== 'undefined' && resizeObserver ) {