New Post: Difficulty retreiving JSON data

Warning:: Rank newb here....

I'm trying to get my first RESTful (client) program working, talking to a Philips Hue (light) controller that's on my network -- it's a REST server.

Here's my very simple program (that doesn't work)...

// HueCmdLine.cpp : Defines the entry point for the console application.
//

#include <cpprest/http_client.h>
#include <cpprest/json.h>
#include <exception>

using namespace std;
using namespace web;
using namespace web::http;
using namespace web::http::client;

#ifdef _MS_WINDOWS
int wmain(int argc, wchar_t *args[])
#else
int main(int argc, char *args[])
#endif
{
    http_client client(U("http://192.168.1.113/api/newdeveloper/config"));

    std::cout << "Starting...";

    client.request(methods::GET)
    
        .then([](http_response response)
        {
            if (response.status_code() == status_codes::OK)
            {
                try {
                    auto bridgeConfig = response.extract_string().get();
                    //auto bridgeConfig = response.extract_json().get();
                    wcout << bridgeConfig << "Ending" << std::endl;
                }
                catch (exception & err) {
                    std::cout << "ERROR:" << err.what() << std::endl;
                }
            }
        })
        
        .wait();
    
    return 0;
}

My problem is, when I try to interpret the http_response, the extract_json throws an exception (Unexpected token near line 1, column 1). When I try to interpet the data with extract_string (I know I shouldn't as I see from response.header that the Content-Type is 'application/json'), I get an empty sting (but the program terminates without an exception).

I can get the same data fine from controller user the integrated web interface. The data is suppsed to look like '{ "name": "bla bla bla", "mac": <etc> }

I'm using VS2014 (Pro) with Casablanca 1.3.1
Any ideas appreciated.