ActionScript 3.0 :: URLLoader Keeps Transferring Data

All Im trying to do is post firstname, lastname and emailaddress from a form inside my swf to a php file and then get that php file to return a result back to my swf.

First of all i tried using external interface to handle this because the server its going to run on doesnt support PHP.

I had the SWFgrab the data from the text fields, pass the data to JS through external interface, then the JS would use jquery AJAX to execute the php file, then the JS would grab the results from the AJAXd div, then pass the data back through to the SWF. It was a bit of a circle jerk but it worked.

However, the PHP script that needs to be executed in a different domain as the SWF. I forgot that this would cause an issue. I then tried to setup AJAX crossdomain policies, but this is going to be a reasonably high traffic site and i felt that the proxy options that i found were kind of slow.

I realised that what id been doing so far was probably over complicated anyway. So, i went back to basics and thought id try using the URLLoader to load in the php file as a string. I setup a crossdomain.xml file on my server that will be hosting the PHP and used the loader to grab the PHP file.

This works fine, all the PHP does is echo out 3 comma separated values which i then split into an array and use in my SWF. I get the values no problem. However, my status bar in firefox keeps saying that its still transferring.

Ive tried telling the PHP script to 'exit();' after its echo'd out my results. Ive tried telling the URLoader to .close(); when its grabbed the data, neither of which stop it from transferring. Im also using the web debugging proxy 'Charles' and that says that the connection opened and closed successfully, but firefox still says that its transferring.[code]...