crossdomain
There are 2 entries for the tag
crossdomain
For security reasons, the Silverlight version 2 runtime restricts access to certain classes of URLs from the WebClient and HTTP classes in the System.Net namespace. The main requirement is that the services you want to use should implement either crossdomain.xml (which is the Flash policy file) or clientaccesspolicy.xml (which is the Silverlight one). If the service you want to use does not implement one of these then you can't use Silverlight to access it. However such restrictions are not present when using WebClient on the server, so you can easily create a bridge service that your Silverlight client can use....
Since FriendFeed has produced an api I thought it would be fun to produce a little Silverlight app or control that could consume it. I thought this would be as simple as the digg example given in the Silverlight Quickstart - and it should be! Unfortunately the guys at FriendFeed have not added a crossdomain.xml or clientaccesspolicy.xml which stops Silverlight (and Flash for that matter) from making cross boundary calls to their api. Took me a while to figure it out, so hope this helps someone. Moreover I hope FriendFeed fix this one quick snap! Cheers Ian Technorati Tags: Silverlight,FriendFeed,crossdomain