Github user dholth commented on the issue:
https://github.com/apache/couchdb-chttpd/pull/147
Thank you @dmunch ! It works for me in CouchDB 2.1.1. I added the following
lines to `local.ini` to enable proxy authentication, and to check proxy before
cookie. The default `{couch_httpd_auth}` configuration is in the wrong section,
and proxy authentication seems to use the secret by default.
```
[chttpd]
authentication_handlers = {couch_httpd_auth, proxy_authentication_handler},
{couch_httpd_auth, cookie_authentication_handler}, {couch_httpd_auth,
default_authentication_handler}
[couch_httpd_auth]
secret = (32 random hex digits)
```
---