Updates to the Chrome, Firefox and Edge browsers have lead to that we no longer are able to use the browser cache as usual.
Therefore it is not possible to load our graphical user interface using these browsers and there is unfortunately no solution available for using these browsers.
We are seeing this on mobile devices as well, and we have not found a browser which is not effected by the updates. On Android based phones and tablets it is from Google Chrome version 71.x.xxxx.xx and forward.
The only way to workaround this is to use another browser, e.g. Internet Explorer or Safari.
If a dedicated UI device is a possibility, then use one of the Neets Touch Panels or an iOS / iPadOS device.