ok i test it more and here is the result:
custom signalling server is running...
on mobile with chrome its working. (ok)
on nw.js export on pc its working (ok)
on preview/html-export on chrome/edge on pc its not working (not ok) (scirra signalling wss is working)
on another pc on the same network its not working (not ok) (scirra signalling wss is working)
on the server itself its working (ok)
but why its like this ?
why its working on nw.js export but not on html export or preview ?
what is your guess Ashley ?