Recently, I began work on building WCF services for a Silverlight application that will be hosted in Azure. While I cannot discuss some of the details of the application, I can definitely talk about some of the gotchas I encountered. One of the things that all developers writing WCF services for Silverlight will encounter is the dreaded cross domain access exception. In general, this is the means by which Silverlight attempts to guard against cross site forgery and other security vulnerabilities. ......