CORS is a nightmare! It’s a browser thing which is why you’re witnessing different behaviour in IE than in Chrome. There are (at least) two ways that CORS is configured on the server. When a client makes a request with the Origin header you have to tell the server whether or not to accept it … Read more
If you can’t make a global change to force responses as JSON, then try: [Route(“api/Player/videos”)] public HttpResponseMessage GetVideoMappings() { var model = new MyCarModel(); return Request.CreateResponse(HttpStatusCode.OK,model,Configuration.Formatters.JsonFormatter); } OR [Route(“api/Player/videos”)] public IHttpActionResult GetVideoMappings() { var model = new MyCarModel(); return Json(model); } If you want to change globally, then first go to YourProject/App_Start/WebApiConfig.cs and add: config.Formatters.XmlFormatter.SupportedMediaTypes.Remove( … Read more