InputStatus.PropertyServerPlugin in javascript

[pietos33]

Hello.
I'm trying to use Streamdeck plugin with Simhub.

My problem: I added a input trigger on the deck called "test".
I want to use it in a js scripted content (ardiuno section).

using NCalc formula prop('InputStatus.PropertyServerPlugin.test')=1, it works => it returns True when i press the input on the deck.
but using js $prop('InputStatus.PropertyServerPlugin.test'), it doesn't work => returns [nul]

what is wrong ?