Provides instructions on how to configure GridGuard virtual appliance (server) to support Cross-Origin Resource Sharing (CORS). This is required for GridLite deployments where the grid will be queried for from a different appliance.

Cross-origin resource sharing (CORS) is a mechanism that allows Javascript on a web page to make XMLHttpRequests to another domain, not the domain the Javascript originated from. Such "cross-domain" requests would otherwise be forbidden by web browsers, per the same origin security policy. CORS defines a way in which the browser and the server can interact to determine whether or not to allow the cross-origin request. It is more powerful than only allowing same-origin requests, but it is more secure than simply allowing all such cross-origin requests.