I've got some strange stuff going on. I have a SWF that is hosted on server A. I have a php file on server B that processes forms. My SWF sends form information to server B and expects to get a set of variables returned (form processed successfully or not).

The SWF is built in AS3. The code is written like this:

Code:
        // SEND FORM INFO
	//-- collect variables
	var variables:URLVariables = new URLVariables();
	variables.email = txtEmail.text;

	//-- set up request for URL
	var myRequest:URLRequest = new URLRequest();
	myRequest.url = "https://services.processingserver.com/postdata/";
	myRequest.method = URLRequestMethod.POST;
	myRequest.data = variables;
	
	//-- process loader
	var myLoader:URLLoader = new URLLoader();
	//myLoader.dataFormat = URLLoaderDataFormat.VARIABLES;
	try
	{
		myLoader.load(myRequest);
	}
	catch (error:ArgumentError)
	{
		trace("An ArgumentError has occurred.");
		txtPrompt.text = "SERVER ARGUMENT ERROR";
	}
	catch (error:SecurityError)
	{
		trace("A SecurityError has occurred.");
		txtPrompt.text = "SERVER SECURITY ERROR";
	}
	
	myLoader.addEventListener(HTTPStatusEvent.HTTP_STATUS,httpStatusHandler);
	myLoader.addEventListener(IOErrorEvent.IO_ERROR,errorHandler);
	myLoader.addEventListener(Event.OPEN, openHandler);
	myLoader.addEventListener(ProgressEvent.PROGRESS, progressHandler);
	myLoader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
	myLoader.addEventListener(Event.COMPLETE,completeHandler);

	....

function securityErrorHandler(e:SecurityErrorEvent):void 
{
	txtPrompt.text = "SERVER SECURITY ERROR - "+e.text;
}
It works fine when I test it from a local file. However, when I post the form SWF to the live server, it returns an Error #2048, triggered by the securityErrorHandler function.

The remote server has a crossdomain.xml file, and the server that the SWF is posted on has the file too. This is the code in the xml file:
Code:
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy 
  SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
  <allow-access-from domain="*" secure="false"/>
</cross-domain-policy>
I've tried adding this code to the SWF:
Code:
Security.allowDomain("*");
Security.loadPolicyFile("https://services.processingserver.com/crossdomain.xml");
What am I doing wrong?

Best,

--eric