We have something in very early test that you’re welcome to try. You’ll need beta firmware and it uses a test back-end but it will allow wss connection to your Line-us. We did look at wss directly to Line-us but the processor isn’t up to the job and anyway there would be cert issues so we’ve implemented a server relay. This means that you can access your Line-us from anywhere on the internet if you want to as well.
The way it works (and as I say, it’s early test so this may change) is that there’s a gcode to create a machine key. You need to be directly connected via a regular TCP socket to do this; telnet is the easiest way. Then you connect your app to a a secure web socket URL on our server that includes the key and if the Line-us is on and also connected it will look to the app as if it’s talking to a local Line-us.
If you (or anyone else) would like to give it a try DM me your Line-us serial number and I’ll configure you for the beta firmware and let you know a bit more detail on the key etc.