From cff6789a358dc61a5d50f5ba89e533000016eacc Mon Sep 17 00:00:00 2001
From: Kevin Ansfield <kevin@lookingsideways.co.uk>
Date: Wed, 8 Aug 2018 13:50:42 +0100
Subject: [PATCH] Koenig - Fixed error in `{{clean-basic-html}}` when passed
 null/undefined

no issue
- default param was not protecting against null value being passed via helper params
---
 ghost/admin/lib/koenig-editor/addon/helpers/clean-basic-html.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ghost/admin/lib/koenig-editor/addon/helpers/clean-basic-html.js b/ghost/admin/lib/koenig-editor/addon/helpers/clean-basic-html.js
index 8ce8961c13..b61d8cb59c 100644
--- a/ghost/admin/lib/koenig-editor/addon/helpers/clean-basic-html.js
+++ b/ghost/admin/lib/koenig-editor/addon/helpers/clean-basic-html.js
@@ -3,7 +3,7 @@ import {isArray} from '@ember/array';
 
 export function cleanBasicHtml(html = '') {
     if (isArray(html)) {
-        html = html[0];
+        html = html[0] || '';
     }
 
     let cleanHtml = html