For some reason the domain you reference won't resolve for me right now so I can't answer my first question, which I'll present to you: What do you mean by "unable to see it working"? What is the failure indication?

If, as I suspect, the failure indication is what appears to be an empty web page but no errors logged by Apache, it's possibly because your content-type is text/html but there's no HTML in your output. Try changing the content-type to text/plain and see what happens.

If that's not it, what's the failure indication?