From a41f91549335b56b24143c68e16fd6330a4f82b9 Mon Sep 17 00:00:00 2001
From: Christophe Matthieu <chm@odoo.com>
Date: Mon, 21 Sep 2015 10:30:00 +0200
Subject: [PATCH] [FIX] web_editor: iframe of html widget must be checked
 before render value

If the iframe is destroyed, detached, hide (eg: click on a record, return into the list view and click on an other record), the render_value method try to resize the iframe but jQery raise an exception because contentWindow doesn't exist.
---
 addons/web_editor/static/src/js/backend.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/addons/web_editor/static/src/js/backend.js b/addons/web_editor/static/src/js/backend.js
index 062b91bd7a2..0b0851a19f5 100644
--- a/addons/web_editor/static/src/js/backend.js
+++ b/addons/web_editor/static/src/js/backend.js
@@ -295,7 +295,9 @@ var FieldTextHtml = widget.extend({
             }
         } else {
             this.$content.html(value);
-            this.$iframe.css("height", (this.$body.height()+20) + "px");
+            if (this.$iframe[0].contentWindow) {
+                this.$iframe.css("height", (this.$body.height()+20) + "px");
+            }
         }
     },
     is_false: function() {