Index: modules/filter/filter.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/filter/filter.module,v
retrieving revision 1.204
diff -u -p -r1.204 filter.module
--- modules/filter/filter.module	21 Jan 2008 15:08:24 -0000	1.204
+++ modules/filter/filter.module	26 Jan 2008 18:57:47 -0000
@@ -1170,7 +1170,7 @@ function _filter_xss_attributes($attr) {
 function filter_xss_bad_protocol($string, $decode = TRUE) {
   static $allowed_protocols;
   if (!isset($allowed_protocols)) {
-    $allowed_protocols = array_flip(variable_get('filter_allowed_protocols', array('http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'mailto', 'irc', 'ssh', 'sftp', 'webcal')));
+    $allowed_protocols = array_flip(variable_get('filter_allowed_protocols', array('http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'mailto', 'irc', 'ssh', 'sftp', 'webcal', 'rtsp')));
   }
 
   // Get the plain text representation of the attribute value (i.e. its meaning).