Clash Royale CLAN TAG

WebAPI routing does not work

I have WebApiConfig

public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
}


Web API controller:

[RoutePrefix("api/Trip")]
public class TripApiController : ApiController
{
[Route("SaveRouting")]
[HttpPost]
public async Task<HttpResponseMessage> SaveRouting(string points, int tripId, decimal totalMileage)
{
// ......
return Request.CreateResponse(HttpStatusCode.OK);
}


and call from jquery:

$.post("/api/trip/SaveRouting",
{ points: JSON.stringify(arrayStops), tripId: $("#hdTripId").val(), totalMileage: tMiles },
function(resp) {
App.unblockUI(blockElRouting);
});


it tries to call, but failure:

App Insights says:

what is invalid?

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