diff -r 33524c46a092 -r ffd3e823a7e5 mercurial/hgweb/request.py
--- a/mercurial/hgweb/request.py	Sun Apr 11 23:54:35 2021 +0200
+++ b/mercurial/hgweb/request.py	Mon Apr 12 03:01:04 2021 +0200
@@ -17,6 +17,9 @@
     pycompat,
     util,
 )
+from ..utils import (
+    urlutil,
+)
 
 
 class multidict(object):
@@ -184,7 +187,7 @@
         reponame = env.get(b'REPO_NAME')
 
     if altbaseurl:
-        altbaseurl = util.url(altbaseurl)
+        altbaseurl = urlutil.url(altbaseurl)
 
     # https://www.python.org/dev/peps/pep-0333/#environ-variables defines
     # the environment variables.