--- a/mercurial/hgweb/common.py	Tue Sep 10 22:52:04 2019 -0400
+++ b/mercurial/hgweb/common.py	Tue Sep 10 12:32:07 2019 -0400
@@ -106,6 +106,7 @@
         if headers is None:
             headers = []
         self.headers = headers
+        self.message = message
 
 class continuereader(object):
     """File object wrapper to handle HTTP 100-continue.