supervisord logs tailing not working from webpage

Hi all,

I use supervisord to run a process inside of my balena container, and the balena device’s public URL to show the webpage of the supervisord.
The balena device’s public url well displays the webpage of the supervisord, and I can start and stop my process.
See below:

But when I click on the “Tail -f Stderr” the webpage displays nothing (and I do not receive any error).

When I run the following command inside the container “curl http://127.0.0.1:80/logtail/main/stderr” I well see the logs:

root@buoy9:/usr/src/app# curl http://127.0.0.1:80/logtail/main/stderr
in__::7 - App running
2024-04-25 08:32:43.433 | INFO | main::7 - App running
2024-04-25 08:32:44.436 | INFO | main::7 - App running
2024-04-25 08:32:45.438 | INFO | main::7 - App running
2024-04-25 08:32:46.441 | INFO | main::7 - App running

Does someone already experienced this issue, or would have an idea from where coud come the problem (maybe on balena server’s side)?

Thanks in advance