Cross Domain security error in Silverlight?

Question

I\'m trying to read a feed from Yahoo Pipes into a Silverlight Application. I keep getting a SecurityException, which sounds like a cross domain policy problem, but Yahoo pi

Answer 1

The policy file in place is:

<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd"> 
<cross-domain-policy> 
  <site-control permitted-cross-domain-policies="master-only" /> 
  <allow-access-from domain="*" /> 
</cross-domain-policy>

There is a current problem that Silverlight does not work with the entire Flash Cross Domain Policy file format...I would expect that the site-control element is breaking it.

Answer 2

The crossdomain.xml policy file at http://pipes.yahooapis.com/crossdomain.xml specifies only secure (https:) requests in the allow-access-from element. See the documentation about the format here:

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
  <site-control permitted-cross-domain-policies="master-only" />
  <allow-access-from domain="*" secure="true" />
</cross-domain-policy>

Answer 3

There is no Client Access policy file at http://pipes.yahoo.com/crossdomain.xml or http://pipes.yahoo.com/clientaccesspolicy.xml

Therefore the SecurityException is correct behavior.

What is the exact URL that you are trying to access?