[Attribute] uri [Required] Yes [Default] N/A [Description] Lists the allowed domains and specific Silverlight applications that can access the granted paths in this policy. The uri specifies a scheme and a domain that connections are allowed from. The scheme and port may be specified. Three types of wildcards are accepted: 1. The standalone '*' wildcard character used alone is interpreted as accept all connections from the same schemed applications hosted on any domain. 2. The "http://*" literal wildcard option is interpreted as accept all connections from HTTP schemed applications on any domain. 3. A subdomain wildcard option is represented as a scheme allowed followed by a '*' character and a '.' character followed by the rest of hostname. The wildcard is used as the first segment of the hostname. This is considered a subdomain wildcard. An attribute value of "http://*.contoso.com" allows only HTTP for the scheme and accepts connections from Silverlight applications hosted on any subdomain of "contoso.com". [Element] 
domain
a l l o w - f r o m
a l l o w f r o m
d o m a i n
r e s o u r c e
s o c k e t - r e s o u r c e