webkit2 – How to activate and make webrtc available in WebKit2Gtk?

I’ve just upgraded libwebkit2gtk from ubuntu ‘s repository to one of the latest version : webkitgtk.org/2025/04/08/webkitgtk-2.48.html

I’ve checked with this script ( blog.ivrpowers.com/post/coding/browser-webrtc/ ) :

and I’ve got : webrtc__not_supported_site.com

But If I change the script in :

        function selectTechnologyLocation() {
            // https://stackoverflow.com/questions/46021469/webrtc-not-available?rq=2

            var isWebRTCSupported = navigator.mediaDevices.getUserMedia;

            if (window.navigator.userAgent.indexOf("Edge") > -1) {
                console.log(UNSUPPORTED_URL);
                return UNSUPPORTED_URL;
            }

            if (isWebRTCSupported) {
                console.log(SUPPORTED_URL);
                return SUPPORTED_URL;
            }
            else {
                console.log(UNSUPPORTED_URL);
                return UNSUPPORTED_URL;
            }
        }
        window.location = selectTechnologyLocation();

I get: webrtc_supported_site.com

So… I do not understand if webrtc is or not available.
And…
How to activate and make webrtc available in WebKit2Gtk?

OS: Ubuntu 24.04