From 00b838ddbd7c3e12738a026f3a5e3cefc7bbf82d Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 4 Jan 2017 17:32:56 +0100
Subject: [PATCH] Strip empty `<kbd>` on backspace in Safari/Firefox

---
 .../files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
index fd514ffce8..a8c10a0809 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
@@ -94,6 +94,13 @@ $.Redactor.prototype.WoltLabKeydown = function() {
 					this.core.editor().find('*[style]').not('span, img, #redactor-image-box, #redactor-image-editter').removeAttr('style');
 					
 					this.keydown.formatEmpty(e);
+					
+					// strip empty <kbd>
+					var current = this.selection.current();
+					if (current.nodeName === 'KBD' && current.innerHTML.length === 0) {
+						elRemove(current);
+					}
+					
 					this.code.syncFire = true;
 					
 				}, this), 1);
-- 
2.20.1