$httpProvider.interceptors.push(function(){
        return {
            'request': function(request) {
                // same as above
                if(request.data){
                    if(request.data.constructor === Array){
                        angular.forEach(request.data, function(obj){
                            delete obj['UI'];
                        });
                    }else if(typeof request.data == 'object'){
                        delete request.data['UI'];
                    }
                }

                return request;
            },

            'response': function(response) {
                // same as above
                if(response.data){
                    if(response.data.constructor === Array){
                        angular.forEach(response.data, function(obj){
                            obj.UI = {};
                        });
                    }else if(typeof response.data == 'object'){
                        response.data.UI = {};
                    }
                }

                return response;
            }
        };
    });