diff -r 5594aadb740e -r 6cb91be7707f web/request.py
--- a/web/request.py	Wed Mar 24 08:40:21 2010 +0100
+++ b/web/request.py	Wed Mar 24 08:42:49 2010 +0100
@@ -314,7 +314,7 @@
                 breadcrumbs.append(self.url())
             else:
                 url = self.url()
-                if breadcrumbs[-1] != url:
+                if breadcrumbs and breadcrumbs[-1] != url:
                     breadcrumbs.append(url)
 
     def last_visited_page(self):