Simon Willison’s Weblog

xssinterface (via) Clever JavaScript library for implementing opt-in cross-domain messaging in JavaScript (allowing communication between pages and iframes on different domains). Uses HTML 5’s postMessage API if available, otherwise falls back on either Google Gears or a clever cookie hack.

# 5th March 2008, 12:08 am / crossdomain, html5, javascript, postmessage, xssinterface