angularjs angularjs-http javascript json

SyntaxError: Unexpected token o at Object.parse (native) AngularJS

Question from AngularJS noob.

I am trying to use an asmx web service to display grid. I tested the web service and it correctly outputs the JSON data.
Here is my controller

app.controller('SetupController', ['$scope', '$http', function ($scope, $http) {
var url="app/pricefilessetup/grid.asmx/getGridJson";
$http.get(url).success(function (data) {
var myjson = JSON.parse(data);
$scope.products= JSON.parse(myjson);

For some reason, SO is not allowing me to paste the html but it basically has a ng-controller directive and ng-repeat to loop through the JSON data.

When I run this web app, I get the error

SyntaxError: Unexpected token o
at Object.parse (native)
and it points to following line

  $scope.questions = JSON.parse(myjson);

I tried checking the value of myjson using alert and it displays [object Object], [object Object], …

Is there anything I am missing here

I think data returned is already in JSON, no need of JSON.parse(), unless it in string format.

$scope.products= data;