… at least according to an official microsoft website.
As you can see, Microsoft is stupidly using a query string to pass an error message. In case they fix this problem (which they no doubt will) I have added a screenshot to the right.
Absolute web development lunacy.
Update: The page has already been fixed.

If you have ever stumbled across Rasmus’s 30 second AJAX Tutorial, then you probably have the code copied, pasted, bookmarked or memorized. There are however a few limitations in this piece of code, especially with the upcoming release of IE7.
The javascript uses a small function to detect the browser.

function createRequestObject() {
var [...]