How do I pass multiple parameters to an ASP.NET webAPI controller action? [SOLVED]

See more:

ASP.NET

WebAPI

routing

My controller action with two parameters is never called. Can anyone see what I'm doing wrong?

URL: /api/JobTitle/1/55 (The arguments are 1 and 55.)

ROUTE:

config.Routes.MapHttpRoute(
    name: "With2Ids",
    routeTemplate:  "api/{controller}/{oldDescription}/{newDescription}"
);

(The parameters are oldDescription and newDescription.)

CONTROLLER:

[HttpPost]
public HttpResponseMessage UpdateJobTitle(string oldDescription, string newDescription)
{...

(The parameters match those in the route.)

CALL FROM VIEW:

$.ajax({
    url: updateUrl,
    type: 'POST',
    success: function (result) {
        window.location = "/Views/index.html";
    }
});

=========================

I've added a custom route with two parameters with the same names as the controller-action parameters. But it never gets called. Any idea why? Thanks!