Index: devel.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/devel/devel.module,v
retrieving revision 1.106.4.31
diff -u -r1.106.4.31 devel.module
--- devel.module	24 Jan 2007 20:51:18 -0000	1.106.4.31
+++ devel.module	30 Apr 2007 22:43:53 -0000
@@ -352,7 +352,7 @@
   // Try not to break non html pages.
   if (function_exists('drupal_get_headers')) {
     $headers = drupal_get_headers();
-    if(strstr($headers, 'xml') || strstr($headers, 'javascript') || strstr($headers, 'plain')) {
+    if(strstr($headers, 'xml') || strstr($headers, 'javascript') || strstr($headers, 'plain') || strstr($headers, 'image')) {
       return;
     }
   }