CORS in Windows Communication Foundation
Windows Communication Foundation (WCF) is another service-oriented Windows .NET framework component that is suitable for building applications that use CORS.
The WCF sends data as asynchronous messages from one service endpoint to another. A service endpoint can be hosted by IIS, or it can be hosted in an application. It can be a client of a service that requests data from a service endpoint.
Out of the box, WCF cannot make cross-origin requests because it does not send the required CORS headers: Access-Control-Allow-Origin, Access-Control-Allow-Methods, and Access-Control-Allow-Methods. WCF can also send the optional CORS headers: Access-Control-Allow-Headers and Access-Control-Max-Age.
Create a global.asax file to add the necessary HTTP headers to Application_BeginRequest. The following example of code for the global.asax file allows a request from http://localdomain.com, using allowed HTTP methods POST, PUT, DELETE. It allows http://localdomain.com...
