Unable to login with Chromium in Grafana view

I use a RPi with touchscreen as dashboard.
To be able to use kiosk mode, I use Chromium which works fine.

One of my views is a Grafana dashboard.
On my desktop & tablet with FF, I can login to this Grafana view/dashboard.
On my desktop & RPi with Chromium, I cannot login to it.
I have looked in the Chromium settings but could not find anything that seems to be related to this issue.

Any idea why this doesn’t work?