2018 117: WebRTC leaks real IP address (or VPN IP if connected to a VPN)
This is tracked in issue 117.
WebRTC is a browser feature that is used by websites to provide real-time communication (chatrooms, in-browser audio calls, video calls, P2P features) in a more robust way than previous browser technologies allowed.
iOS handles WebRTC connections specially, which means that these connections cannot be controlled by Onion Browser (like several other iOS-handled connections). Unfortunately, this means that all WebRTC connections will use the normal internet connection of the device -- this traffic is not routed over Tor, and any site using such features would know your real IP address.
If you use a VPN, the IP address revealed will be your VPN address and not your native IP address.
- Please see here for screenshots & instructions on how to set Strict security mode: https://github.com/OnionBrowser/OnionBrowser/issues/117#issuecomment-500170915