Two problems: - Unlike the host, URIs are a property of the request, not the connection, so sending it as part of the connection handshake doesn't really make

Two problems: - Unlike the host, URIs are a property of the request, not the connection, so sending it as part of the connection handshake doesn't really make sense. - Unlike the host, there is a very long history of putting secret things into the URI. Even if the extension is built with this in mind, the number of security breaches that will result is greater than zero, with probability one. That's probably not the correct price to pay for convenient censorship infrastructure.