--- a/web/controller.py	Tue Feb 23 13:19:16 2010 +0100
+++ b/web/controller.py	Tue Feb 23 13:40:55 2010 +0100
@@ -126,8 +126,7 @@
 
     def validate_cache(self, view):
         view.set_http_cache_headers()
-        self.req.validate_cache()
-
+        self._cw.validate_cache()
 
     def reset(self):
         """reset form parameters and redirect to a view determinated by given