Web UI not working on any IPad

I’m not sure when this happened but I’m now finding that the web UI fails to load on any iPad in any browser. I have an older iPad running 10.3 and my daughter has a new iPad Pro. Whichever browser we use we just get the blue bar at the top loading and nothing else. Safari, chrome, Firefox are all the same.

I think this started around the time of the new style web front end.

I’m on HA 0.60.0 and IOS 11 on iPad-pro 10.9 and UI loads fine in safari.

This appears to be a workaround but screws up the colours

Looks like this is a reoccurring issue as I got the same issue in 2020 with any browser on my iPad (iOS 11.x) I already create a github issue but no solution so far.
Does anybody else have problems with iPads? I am using a python venv installation, disabled login and authentification features (only user at home) but some error messages seem still to indicate a problem with an “access token”???