Can't get system information using SystemInfo in WebGL

We need to treat ARM-based Chromebooks differently, but we can’t seem to get anything usable out of SystemInfo in WebGL. It’s spits out identical and useless info for both Intel and ARM-based Chromebooks:

Type: Desktop
Device Name: n/a
OS: Linux
Graphics Type: OpenGLES2
Graphics Name: WebKit WebGL

Is there any way we can get some piece of distinguishing info to tell if a player is running on an ARM?

Many thanks

You should be able to detect it by reading the user agent string in JavaScript code. An ARM Chromebook should give you something like:

Mozilla/5.0 (X11; CrOS armv7l 4537.56.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.38 Safari/537.36