From: Michael M Slusarz <slusarz@curecanti.org>
Date: Tue, 14 Dec 2010 22:30:15 +0000 (-0700)
Subject: Make sure HEAD exists before appending to it
X-Git-Url: https://git.internetallee.de/?a=commitdiff_plain;h=993d32c2b0836d4b1384871060a94f9368aadf15;p=horde.git

Make sure HEAD exists before appending to it
---

diff --git a/framework/Text_Filter/lib/Horde/Text/Filter/Xss.php b/framework/Text_Filter/lib/Horde/Text/Filter/Xss.php
index 0a992ad7a..d76535fa4 100644
--- a/framework/Text_Filter/lib/Horde/Text/Filter/Xss.php
+++ b/framework/Text_Filter/lib/Horde/Text/Filter/Xss.php
@@ -109,7 +109,14 @@ class Horde_Text_Filter_Xss extends Horde_Text_Filter_Base
             $meta->setAttribute('http-equiv', 'x-dns-prefetch-control');
             $meta->setAttribute('value-equiv', 'off');
 
-            $dom->dom->getElementsByTagName('head')->item(0)->appendChild($meta);
+            $head = $dom->dom->getElementsByTagName('head');
+            if ($head->length) {
+                $head->item(0)->appendChild($meta);
+            } else {
+                $headelt = $dom->dom->createElement('head');
+                $headelt->appendChild($meta);
+                $dom->dom->appendChild($headelt);
+            }
         }
 
         if ($this->_params['return_dom']) {