The issue is similar to this one but instead of using NGINX as a reverse proxy I use Traefik. I had no problem with Traefik 1.7 but switching to 2.0 made the problem appear.
This is resolved in NGINX by using proxy_http_version 1.1;
Syntax: proxy_http_version 1.0 | 1.1; Default: proxy_http_version 1.0; Context: http, server, location This directive appeared in version 1.1.4. Sets the HTTP protocol version for proxying. By default, version 1.0 is used. Version 1.1 is recommended for use with keepalive connections and NTLM authentication.
It is probably linked with the forwading of the port 9999 to the 80, but if I try to tell Jupyter to use the port 80 it will not launch, telling that the port 80 is not available...
Here is the Docker-compose.yml :
version: '3' volumes: jupyter: driver: local networks: traefik: external: true services: jupyter: image: jupyter/datascience-notebook networks: - traefik labels: - "traefik.enable=true" # Get the data from port xxxx instead of port 80 - "traefik.http.services.jupyter.loadbalancer.server.port=9999" # Get the routes from http - "traefik.http.routers.jupyter.rule=Host(`jupyter.mysite.com`)" - "traefik.http.routers.jupyter.entrypoints=web" # Redirect these routes to https - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https" - "traefik.http.routers.jupyter.middlewares=redirect-to-https@docker" # Get the routes from https - "traefik.http.routers.jupyter-secured.rule=Host(`jupyter.mysite.com`)" - "traefik.http.routers.jupyter-secured.entrypoints=web-secure" # Apply autentificiation with http challenge - "traefik.http.routers.jupyter-secured.tls=true" - "traefik.http.routers.jupyter-secured.tls.certresolver=myhttpchallenge" user: root working_dir: /home/mysuer/work volumes: - ./work:/home/mysuer/work environment: - JUPYTER_ENABLE_LAB=yes - NB_USER=myuser - NB_UID=1000 - NB_GID=1000 - CHOWN_HOME=yes command: start-notebook.sh --NotebookApp.token='mytoken' --no-browser --allow-root --notebook-dir=/home/mysuer/work --port 9999
I did not find how to configure Traefik to use HTTP version 1.1 for proxy...