I can connect to my internal network from outside via an OpenVPN tunnel. However I need to manually start the VPN connection on my iPhone or iPad every time before I want to access one of my internal machines. So
Security hole in Firefox and Chrome allows leaking of IP address
A security hole in Firefox and Chrome allows websites to determine a web user’s real IP address, even when using a VPN: “Firefox and Chrome have implemented WebRTC that allow requests to STUN servers be made that will return the local