Callback function not being included in response

[mii9000]

I have the following in my Web API action:

[HttpGet]
public HttpResponseMessage GetProducts(string id)                
{
      var returnData = data;
      string callback = ControllerContext.Request.GetQueryNameValuePairs().Where(kv => kv.Key == "callback").Single().Value;    
      return Request.CreateResponse(HttpStatusCode.OK, returnData, new JsonpMediaTypeFormatter(new JsonMediaTypeFormatter(),callback), new MediaTypeHeaderValue("text/javascript"));
}

But it is responding with:
({.....}); instead of myCallback({....});

Where am I going wrong?

[mii9000]

Settled for enabling CORS on Web API project rather trying to handle JSONP calls. But this is still a issue though.

[langico]

why responding this?

[MingweiSamuel]

I am getting the same error

[MingweiSamuel]

added a quick fix #48

[MingweiSamuel]

R I P