Network Security Access Restrictions

Network Security Access Restrictions in Silverlight 2:

If the case of RPC over HTTP the Silverlight 2 runtime will try to download a security policy file using the HTTP protocol. The runtime tries to download a Silverlight policy file with a name of "clientaccesspolicy.xml" at the root of the requested target domain using the HTTP protocol (it also accepts "crossdomain.xml" at the root of the requested target domain).

Sample clientaccesspolicy.xml file in the web site root:

<?xml version="1.0" encoding="utf-8"?>
<access-policy>
    <cross-domain-access>
        <policy>
            <allow-from http-request-headers="*">
                <domain uri="*"/>
            </allow-from>
            <grant-to>
                <resource path="/" include-subpaths="true"/>
            </grant-to>
        </policy>
    </cross-domain-access>
</access-policy>

 

For details on Network Security Access Restrictions please read Network Security Access Restrictions in Silverlight 2 in the MSDN library