Unhandled Exception: NoSuchMethodError: The getter 'closeCode' was called on null.

[sovoereign]

I have been trying for many days still don't understand what problem is this.
My URL is working on the web but not on the app from peer to peer connection dialog.

https://115.166.***.178:8086/

I don't get how a mobile device will connect with web video calling.

[cloudwebrtc]

There are two points to note about mobile connection:

1. If your web server uses a valid domain name and SSL certificate, the mobile terminal can connect directly.
2. If not, you need to modify the code to connect your self-signed WSS server using the _connectForSelfSignedCert function.

[sovoereign]

@cloudwebrtc yes manually I have added certificate over the server and it works. and change my IP URL WSS to WS and port 4442 it works from mobile to web.
url= ws//115.166.***.178:4442 it works.

[jason-nguessan]

@cloudwebrtc yes manually I have added certificate over the server and it works. and change my IP URL WSS to WS and port 4442 it works from mobile to web.
url= ws//115.166.***.178:4442 it works.

This solved my issue. You mean url= ws://115.166.***.178:4442 or for those running locally with demo as of Dec 21 var url = 'ws://0.0.0.0:4442';