diff -r 8b4d4f84b739 -r c593e502f7fd mercurial/hgweb/hgweb_mod.py
--- a/mercurial/hgweb/hgweb_mod.py	Thu Apr 12 12:42:22 2007 -0500
+++ b/mercurial/hgweb/hgweb_mod.py	Sun Apr 15 18:42:38 2007 -0500
@@ -703,7 +703,7 @@
                     # strip leading /
                     pi = pi[1:]
                     if pi:
-                        root = root[:-len(pi)]
+                        root = root[:root.rfind(root, pi)]
                     if req.env.has_key('REPO_NAME'):
                         rn = req.env['REPO_NAME'] + '/'
                         root += rn