if(uri == '/json/executeCode') {
    console.log(request.method);
    console.log(request.body);
}

$.ajax('/json/executeCode', {
                        type: 'POST',
                        data: JSON.stringify("lol"),
                        contentType: 'text/json',
                        success: function() { alert("success"); },
                        error  : function() { alert("failure!"); }
                    });



NodeJS:
POST
undefined

Client:
alert("failure!");