Very slick setup && service! My one question: are there any safe-guards against people sharing sensitive information hidden in the html, e.g. user-auth tokens (like the ones you can find in HackerNews up-vote links: http://clipboard.com/clip/LQjwmHJQNjxVAYYPgQzmbPAYrMjpkkHdOT...)? Is this even a practical security concern?