I'm creating a presentation slide using flash cc. There's play button in it and when the user hit the play button, it sends some text data to the server. I'm new to communication between swf and server. I used post method to send data to server and it works fine when tested in flash. But when I run swf alone it shows security error. So, in publish setting I change local playback security to access networks only. It works fine when swf file is played alone. But when the file is uploaded in web, it doesn't work. I googled about it and it looks like I need place crossdomain.xml file.I'm really new to working with server. So please someone guide me how to achieve this.