Dear Eskimo, Thanks for your reply. The issue was server-side. I’ve now defined a .cs class to enable CORS for all incoming requests. public static class WebApiConfig { public static void Register(HttpConfiguration config) { var cors = new EnableCorsAttribute("", "", "*"); config.EnableCors(cors); config.MapHttpAttributeRoutes(); config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{id}", new { id = RouteParameter.Optional }); } } Thanks Mozib

Hi Shrish, An error occurred: { "headers": { "normalizedNames": {}, "lazyUpdate": null, "headers": {} }, "status": 0, "statusText": "Unknown Error", "url": "http://kimoha.tzo.com:92/iosCors/api/values?StartDate=2022-01-01&EndDate=2022-12-31", "ok": false, "name": "HttpErrorResponse", "message": "Http failure response for http://kimoha.tzo.com:92/iosCors/api/values?StartDate=2022-01-01&EndDate=2022-12-31: 0 Unknown Error", "error": { "isTrusted": true } }