Last Call: HTML5 Web Messaging

The Web Applications Working Group has published a Last Call Working Draft of HTML5 Web Messaging. Web browsers, for security and privacy reasons, prevent documents in different domains from affecting each other; that is, cross-site scripting is disallowed. While this is an important security feature, it prevents pages from different domains from communicating even when those pages are not hostile. This specification defines two mechanisms for communicating between browsing contexts in HTML documents. Comments are welcome through 01 June. Learn more about the Rich Web Client Activity.