Glad to hear you enjoying the book! Cross domain JS is a real pain - in fact there have been a number of posts recently that you might want to look at:

Cross-Domain Ajax. Security Implications in Depth, Debunking Strong Misconceptions About Cross-Domain Ajax Security Issues, On-Demand Javascript and What else is buried down in the depth’s of Google’s amazing JavaScript?.

Honestly, I’m on the fence with this one - some experts believe it’s a big deal, others do not. The magic we allude to in the book is “signing” the JavaScript code but as I understand it, this isn’t portable across browsers. Of course that may not matter to you! Good luck on your project and I want to point out that we included an email address in the book - feel free to drop us a line… BTW, you can call me Nate

I am a cs student a CSULA. I am working on a possible extension for the Firefox web browser, as a senior project. I am currently reading “Foundations of Ajax” and am thoroughly enjoying it.

The extension that I’m building will allow the user to view a page, right click on a link and unfold the link in the current page, viewed. I intended to have an xul overlay from which to display the requested page, scroll and stretch, untill a fit was found then save the two pages as one.

I have only recently discovered AJAX and it’s ability to manipuate a web page’s request object. However, as noted in your book, page 35, Firefox initially disables the ability to request a url that is not in the current domain. You mentioned a javascript fix for this and I looked across the internet and have so far been unsuccessful. If possible, could you direct me to the answer of my question.

Thank you,

David Zepeda