using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace iBemsDataService { // NOTE // The following change to web.config is required // // static class CorsSupport { public static void HandlePreflightRequest( HttpContext context ) { var req = context.Request; var res = context.Response; var origin = req.Headers["Origin"]; if( !String.IsNullOrEmpty( origin ) ) { res.AddHeader( "Access-Control-Allow-Origin" , origin ); res.AddHeader( "Access-Control-Allow-Credentials" , "true" ); var methods = req.Headers["Access-Control-Request-Method"]; var headers = req.Headers["Access-Control-Request-Headers"]; if( !String.IsNullOrEmpty( methods ) ) res.AddHeader( "Access-Control-Allow-Methods" , methods ); if( !String.IsNullOrEmpty( headers ) ) res.AddHeader( "Access-Control-Allow-Headers" , headers ); if( req.HttpMethod == "OPTIONS" ) { res.StatusCode = 204; res.End(); } } } } }