Server polling with AngularJS

I'm trying to learn AngularJS. My first attempt to get new data every second worked: 'use strict'; function dataCtrl($scope, $http, $timeout) { $scope.data = []; (function tick() { $http.get('api/changingData').success(function (data) { $scope.data = data; $timeout(tick, 1000); }); })(); }; When I simulate a slow server by sleeping the thread for 5 seconds it waits for the response before updating