Flash and crossdomain
The first obstacle is the security box / crossdomain in Flash.
If you want to know more about the security box and crossdomain.xml, visit Martijn de Visser blog, he has an excellent explanation (with images!!!).
But in short, if you want to load images/ xml/ etc from a different server then your own, you need permission (crossdomain.xml) from that server.
This information is given to us by
loadClip (MovieClipLoader.loadClip method) which explains about crossdomain, security box and the MovieClipLoader (this is the method I use to load the images).
And here I seem to run into a bug: it should not be possible to load from another server without a crossdomain.xml, but I can.
When I follow my HTTP traffic between my machine and the Internet (using Charles) I don’t come across a crossdomain.xml when I load images but when I load xml form that same server I don’t get permission to do so (it can’t find a crossdomain.xml and so it’s not allowed to load xml from that server).
Xml loading from another server is not allowed without crossdomain.xml, but images doesn’t seem to be a problem.