diff -r 12aca6770046 -r 566cb89050b7 mercurial/httpconnection.py
--- a/mercurial/httpconnection.py	Thu Mar 09 21:35:21 2017 -0800
+++ b/mercurial/httpconnection.py	Thu Mar 09 22:35:10 2017 -0800
@@ -69,6 +69,9 @@
     # Read configuration
     groups = {}
     for key, val in ui.configitems('auth'):
+        if key in ('cookiefile',):
+            continue
+
         if '.' not in key:
             ui.warn(_("ignoring invalid [auth] key '%s'\n") % key)
             continue