Index: lib/Catalyst/Manual/Cookbook.pod
===================================================================
--- lib/Catalyst/Manual/Cookbook.pod	(revision 9096)
+++ lib/Catalyst/Manual/Cookbook.pod	(working copy)
@@ -67,6 +67,18 @@
 modifying your application scripts. Just set C<CATALYST_DEBUG> or
 C<E<lt>MYAPPE<gt>_DEBUG> to a true value.
 
+=head3 Removing sensitive query parameter data from debug output
+
+If debug status is on in the environment, you will get a nice dump of
+the query parameters on each request.  But sometimes it's not good to show
+all the parameter values - for example, you might want to hide passwords.
+You can configure your application to redact certain query parameters:
+
+    MyApp->config->{Debug}->{redact_parameters} = [ 'password' ];
+
+The parameter names will still appear in the query parameter dump, but
+the value will be replaced with '(redacted by config)'.
+
 =head2 Sessions
 
 When you have your users identified, you will want to somehow remember