HTTP_RESPONSE_STATUS is only available in AIR. If this is not an AIR application, you need to use HTTP_STATUS.
See; http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/events/HTTPStatusEvent.html -- View this message in context: http://apache-flex-users.2333346.n4.nabble.com/URLLoader-addEventListener-HTTPStatusEvent-HTTP-RESPONSE-STATUS-produces-Error-2007-Parameter-type-ml-tp10259p10264.html Sent from the Apache Flex Users mailing list archive at Nabble.com.
