Help with Cross-Domain file for ActionScript 3 Socket

actionscript-3, apache-flex, crossdomain.xml, sockets

Solution

Socket policy files work a little differently than HTTP policy files; in particular, they aren't served via HTTP, or at port 80.

Instead, Flash Player checks for a policy file server (port 843 by default), or if necessary, on the socket you're opening (for you, port 2222).

A policy file server is a socket which responds to a `<policy-file-request/>` with a valid policy file. What's happening with your message is likely that it's sending its request and getting something other than a policy file back, hence invalid syntax from port 2222.

There are a lot of resources out there, and a number of questions here on SO. Here's one tutorial from Adobe.

Problem

Here is My ActionScript Code: ``` var S:Socket=new Socket("127.0.0.1",2222); ``` Here is My CrossDomain.XML File (Located at http://127.0.0.1/crossdomain.xml) ``` <?xml version="1.0"?> <!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd"> <cross-domain-policy> <allow-access-from domain="*" to-ports="2222"/> </cross-domain-policy> ``` Here is The Error I Am Getting ``` Ignoring policy file at xmlsocket://127.0.0.1:2222 due to incorrect syntax. ``` Having never used one before, I don't understand what's wrong with the syntax of my CrossDomain file. Please Help.

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