Controller

errors

Error: permission_denied: Client doesn't have permission to access the desired data.
destroy called for FirebaseArray: https://MYURL.firebaseio.com/contacts
Error: Cannot call $add method on a destroyed $firebaseArray object

gistfile1.txt

angular.module('ContactApp')
  .controller('ContactCtrl', function ($scope, Ref, $firebaseArray, $timeout) {
  
    $scope.contact = {};
    $scope.contacts = $firebaseArray(Ref.child('contacts'));
  
    $scope.save = function(form) {
      if (form.$isInvalid) {
        return; 
      }
      
      $scope.contacts.$add($scope.contact)
        .catch(alert);
    };
  
  });

rules

{
    "rules": {
        ".read": false,
        ".write": true
    }
}