Silverlight clientaccesspolicy.xml crossdomain.xml

Question

I am one of 2 developers on a silverlight project that is hosted online. The problem is that i seem to randomly have problems with our webservices not working (This never happens to my colleague).

Using firebug, i had a look at any problems that it was reporting and i found this:

GET clientaccesspolicy.xml 404 not found GET crossdomain.xml 404 not found

Any ideas why only i have a problem with like this?

We have both cleared out our cache and recycled the application pool of the webserver... no joy.

Thanks, Kohan

Answer 1

This happens when the client attempts to connect to a domain on which it is not hosted. The policy files are used to grant access to that server from the SL client.

Are you both running the client from the same location? Double check your proxy settings and hosts file too.

HTH, Kent

Answer 2

So the webserver intermittently returns 404 errors on the policy file? What version IIS?

If your colleague never gets the error, compare the request headers between his system and yours to be sure there isn't something weird going on.

If the policy file is hosted by a provider and you're getting intermittent 404 errors you should put in a ticket with the provider.

Answer 3

Found out the problem came when accessing the site without typing "www." I should have known to check that first. :(