Linked webpage should not display LAN IP addresses.
PeerConnectionBackend is able to filter ".local" SDP candidates out, but what we get from GstWebRTC are already resolved IP addresses, it seems.
Relevant tests: webrtc/datachannel/filter-ice-candidate.html webrtc/filtering-ice-candidate-after-reload.html
https://gitlab.freedesktop.org/libnice/libnice/-/issues/68 https://datatracker.ietf.org/doc/html/draft-mdns-ice-candidates-00
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1233