The book is published!

I have just get noticed that the second edition of the book "HTML5 for Masterminds" by J.D. Gauchat have just been published on Amazon and will be ready on paper (also in spanish! :-D ) in some weeks, but the best part (at least for me) is the next paragraph:

IMPORTANT: At the time of writing, the specification for data channels is under development, and this part of the API was not yet implemented in browsers. To test the last example, we used a polyfill developed by Jesús Leganés Combarro (pirannafs.blogspot.com) and available at https://github.com/piranna/DataChannel-polyfill. This script implements data channels using its own Websocket server. For this reason, the script of Listing 24-12 might have to be modified to work with the official implementation. Please check our website for updates.

I'm happy :-)