If you go here https://ipleak.net/ you can see how WebRTC gives away information it shouldn't in the first place and a method for popular browsers to prevent this. Can't you add this kind of functionality?
If you build with QtWebEngine 5.11, there is an option "Prevent WebRTC from leaking local IP address" in Preferences.
(In reply to David Rosca from comment #1) > If you build with QtWebEngine 5.11, there is an option "Prevent WebRTC from > leaking local IP address" in Preferences. I'm using packaged version that is built with 5.10.1. So with 5.11 version a new option comes in? Thanks.
Yes, when QtWebEngine 5.11 comes to your distribution and Falkon is rebuilt against it, Falkon will have this option.
(In reply to David Rosca from comment #1) > If you build with QtWebEngine 5.11, there is an option "Prevent WebRTC from > leaking local IP address" in Preferences. I do not see this preference in Falkon 3.0.1 built against QtWebEngine 5.11.1, is there a particular flag that I need to activate when building qtwebengine? something like --force-webrtc-ip-handling-policy=default_public_interface_only from https://bugreports.qt.io/browse/QTBUG-57505 perhaps?