Index: includes/ajax.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/ctools/includes/ajax.inc,v
retrieving revision 1.14.2.11
diff -u -p -r1.14.2.11 ajax.inc
--- includes/ajax.inc	26 Jul 2010 21:38:55 -0000	1.14.2.11
+++ includes/ajax.inc	5 Aug 2010 05:58:07 -0000
@@ -509,7 +509,7 @@ function ctools_ajax_render($commands = 
     echo '<textarea>' . drupal_to_js($commands) . '</textarea>';
   }
   else {
-    drupal_json($commands);
+    ctools_json_output($commands);
   }
   exit;
 }
@@ -580,3 +580,12 @@ function ctools_ajax_associate_url_to_el
     '#attributes' => array('class' =>  $form_element['#id'] . '-url'),
   );
 }
+
+function ctools_json_output($var = NULL) {
+  // We are returning JSON, so tell the browser.
+  drupal_set_header('Content-Type: application/json; charset=utf-8');
+
+  if (isset($var)) {
+    echo str_replace(array("\r", "\n", "<", ">", "&"), array('\r', '\n', '\u003c', '\u003e', '\u0026'), str_replace("\'","'", json_encode($var)));
+  }
+}
\ No newline at end of file