security error in flex,sockets

Hi George,

I'm pretty sure I know the cause of your security sandbox problem.

In the move from Flash Player 9 to 10, Adobe increased the security constraints on sockets. As you might already know, when you use HTTP to connect to a server other than the one from which your SWF was downloaded, the Flash Player requires that a Cross-Domain Policy file be served up from the root of the target server. Prior to FP10, this constraint also existed for sockets as well, but since FP10 the requirement is more stringent: if you are using sockets to connect to an "un-trusted" server, then you will still need a Cross-Domain Policy file, however that policy file must also be served up through sockets.

In other words, you will need to set up and run a socket server on the server you are connecting to, in order to serve up the appropriate XML document through port 843 (by default). This socket server can be implemented in any number of ways, but I use a Java socket server that Thomas over at LessRain has posted on their blog. You can find it here: http://www.blog.lessrain.com/as3-java-socket-connections-to-ports-below-1024/

Good luck,

Taylor

4Point Solutions Ltd.

http://blogs.4point.com/taylor.bastien/