Cell Sync - First connection issue: blank screen immediately after connecting to Pydio server

Client OS : Windows
Client version: CellsSync - 0.9.2
Revision ad58523870c3c03ec01b0f22800a27c572cf3aa3 (2020-09-10T09:43:57)
Pydio Server OS: FreeBSD 13.1 (installed from ports)
Pydio Server version: Pydio Cells Home Edition (v3.0.7)

This is a first connection issue.

When I try to create first account:

I briefly see server backdrop, then page becomes blank.

  • Browser has page open, logged in to my Pydio account
  • Tried with Firefox, Brave, Edge.

I see there is another issue here, not sure if related: Cells sync cant connect to my server

same issue:
Client OS: OSX 13.2
Client version : CellsSync - 0.9.4
Pydio Server version: docker image pydio/cells:4.1
Reverse Proxy : Traefik v2.9.6

configuration according to documentation : cells/tools/docker/compose/behind-traefik at main · pydio/cells · GitHub

if anyone has an idea …

same her, I get a blank screen trying to connect

looks like something like this,
First connection issue: blank screen immediately after connecting to Pydio Cells server · Issue #46 · pydio/cells-sync · GitHub - https://github.com/
an error message instead of a blank screen would help …

the example docker compose on Pydio | Docker - https://pydio.com/
does work for me in browser, but not for cellsync with reverse proxy,
for testing disabled tls … now it works