Socket: Security sandbox violation - actionscript-3

Question

I'm trying to open a socket to my server, but it doesn't work, I'm always getting the famous
Error #2044: Unhandled securityError:. text=Error #2048: Security sandbox violation: http://zappy.mydomain.fr/ZappyGraphic.swf cannot load data from zappy.mydomain.fr:4242.
I have a crossdomain.xml at the root of my domain, looking like that:
<?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" />
<site-control permitted-cross-domain-policies="master-only"/>
<allow-http-request-headers-from domain="*" headers="*"/>
</cross-domain-policy>
And in my actionscript program, here is how I load the crossdomain policies
Security.allowDomain("*");
Security.allowInsecureDomain("*");
Security.loadPolicyFile("http://mydomain.fr/crossdomain.xml");
The server is located at mydomain.fr on the port 4242 and the swf file is located at http://zappy.mydomain.fr/index.html...
Can someone enlighten me?

Answer 1

It seems like you can not have a space at the end of the line, so:
<allow-access-from domain="*" secure="false" />
Has to be
<allow-acces-from domain="*" secure="false"/>
Thanks to make me lose my time ! :D
And, as #Gio made me notice, you have to configure a socket policy server listening on port 843. Here is my nginx configuration if someone needs it:
server {
listen 843;
server_name mydomain.fr;
location / {
rewrite ^(.*)$ /crossdomain.xml;
}
error_page 400 /crossdomain.xml;
location = /crossdomain.xml {
root /usr/share/nginx/www/root;
}
}