Index: tools/gformat.py
===================================================================
--- tools/gformat.py	(revision 14169)
+++ tools/gformat.py	(revision 14170)
@@ -1516,6 +1516,7 @@
         generate_static(CACHE_DIR, False)
 
+    # URL must be of format <prefix>/config/<path>
     base_uri = environ['REQUEST_URI']
-    uri = base_uri.strip('/').split('/')[1:]
+    uri = filter(None, base_uri.strip('/').split('/config')[1].strip('/').split('/'))
 
     output = "Template Holder"