Ajax won't get past readyState 1, why?

Question

I\'m trying to get this function to work, which does a request for parameter url then sends the responseText to callback which is a function.

Answer 1

Check that the URL in question does actually respond by visiting it directly in the browser.

Test with a different browser do you get the same result.

Use some form of HTTP monitor to watch the client to server conversation (my favorite is Fiddler)