Frontend empty screen with blue bar on android

My Home Assistant installation (0.77.3) is running well on a RPi2. I can load the frontend webpage with a Chrome browser on Windows 10, Safari and Chrome browser on an iPad2 and with a Chrome browser on an Android 7.1 phone.
I would like to use an Android 4.0.3 tablet on the wall to show the frontend, but on this tablet I only see an empty screen with a blue bar (multiple browsers). I’ve restored the tablet to factory settings, and set the frontend javascript version to ‘es5’. Both actions without result…
What else can I try?

Did you get this sorted? All of my iPads stopped loading the page this week. I can still access it on my laptop though. Unable to access HA via the app or safari.

No, it still doesn’t work. But I have problems on Android, the Ipad is ok.
Does anyone know what is the lowest version of Android which is supported by HA?

I think it’s definitely an issue with security, just loaded it fine on two ipads running versions 11 and 12, so i guess this has something to do with the new auth in version 0.79.3. Is it possible to include the long live token in the web address?

I’ve installed the dev version 0.81.0, and I can confirm that fixes the issue with ios 9.3. I’ll be running dev until it reaches the full version.

Have you tried using Firefox? I have an Android tablet running 4.4.4 and encountered the blue bar on top and white on bottom using a lot of different browsers (Chrome, the stock AOSP browser, Kiwi, Brave, etc.). All of the Chromium based browsers seem to have issues loading more modern web pages on older versions of Android. Unfortunately, this means that the Fully Kiosk Browser doesn’t work either as it uses WebView. Firefox is using Gecko so I’m guessing this bypasses that problem which is why it worked for me.