Newer scipy-notebook version 3.3.4 with GEN_CERT=yes creates SSL errors [http request]; does not work with Traefik reverse-proxy

I built an image to include some preinstalled packages. I noticed that this has something to do with the versions of jupyterlab:

docker run --rm -p 8888:8888 -e GEN_CERT=yes jupyter/scipy-notebook:lab-3.2.8

runs fine without any breaking SSL error. However

docker run --rm -p 8888:8888 -e GEN_CERT=yes jupyter/scipy-notebook:lab-3.3.4

generates the following SSL error

[W 2022-05-07 10:36:02.146 ServerApp] SSL Error on 44 ('', 44474): [SSL: HTTP_REQUEST] http request (_ssl.c:1129)

I tested Docker Swarm services using both versions. The version 3.2.8 works fine. Version 3.3.4 breaks! I should probably open an issue on GitHub, but I would like to hear someone’s opinion first.

Note: I hope 3.2.8 isn’t too old to have Facets included.

there’s an issue already

Does the client trust the authority used by the server ?

I can easily bypass that.