mozilla/thimble.webmaker.org — pull request #164 by Pomax (2013-06-27 14:43:57+00:00)
Title: preview-in-iframe-on-different-domain

This is a stub that introduces a preview panel that isolates the code that runs in it through a domain barrier, by loading the actual preview loader as an html file from a different domain, with changesets communicated through postMessage.

This works with a version of friendlycode that lives on my friendlycode repo.