ionic http get request return status 0 in device

i tried to get dynamic data from a external url using get method in http, it works fine in browser but when i run it from device the get request is not processed and returns status 0. CORS is also enabled. the controller is added below for reference

$scope.getData = function() {
        $http.get("http://somedomain")
            .success(function(data) {
                $scope.firstname = data;

            })
            .error(function(data, status,headers,config) {

      $scope.data = data;
      $scope.status = status;
      $scope.headers = headers;
      $scope.config = config;
            });
    };