jlami opened a new issue #3581:
URL: https://github.com/apache/couchdb/issues/3581
## Description
When I setup a replication to or from our server on my localhost, it fails
with the following message in the logs:
```
TLS client: In state hello received SERVER ALERT: Fatal - Protocol Version
couch_replicator_httpc: auth plugin initialization failed "<domain>/<db>/"
{session_request_failed,"<domain>/_session","<login>",{conn_failed,{error,{tls_alert,"protocol
version"}}}}
throw:{replication_auth_error,{session_request_failed,"<domain>/_session","<login>",{conn_failed,{error,{tls_alert,"protocol
version"}}}}}: Replication a1bdd0826e477495f682c9016b72a3ac+continuous failed
to start "<domain>/<db>/" -> "http://localhost:5984/<db>/" doc
<<"shards/c0000000-dfffffff/_replicator.1534774612">>:<<"ca70b757bcaeb8d72c9763af3e00073a">>
stack:[{couch_replicator_httpc,setup,1,[{file,"src/couch_replicator_httpc.erl"},{line,59}]},{couch_replicator_api_wrap,db_open,3,[{file,"src/couch_replicator_api_wrap.erl"},{line,74}]}]
```
## Steps to Reproduce
We have setup our server with the following configuration:
https://ssl-config.mozilla.org/#server=haproxy&version=2.0&config=modern&openssl=1.1.1f&guideline=5.6
I can test if it works if I move from 'Modern' to 'Intermediate', but I was
hoping to keep our server on Modern.
## Your Environment
* CouchDB version used: 3.1.1
* Browser name and version: N/A
* Operating system and version: Windows 10 2004
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