Password protection does not work offline

I recently had a subscription for the password protection feature but I noticed it only works when the device is connected to wifi.

When the device is offline the password prompt does not show up at all even though it’s enabled and the user can change the settings or disable detection completely.

But how do you browse the internet without the Wifi?? In any case the solution is basically to save the password in a file or as a cookie and that's it.