Microsoft.AspNetCore.Mvc.Cors A filter that applies the given and adds appropriate response headers. Creates a new instance of . The . The . The policy name used to fetch a . A filter factory which creates a new instance of . Creates a new instance of . Name used to fetch a CORS policy. An which ensures that an action does not run for a pre-flight request. A filter that can be used to enable/disable CORS support for a resource. A CORS policy named '{0}' could not be found. A CORS policy named '{0}' could not be found.