Function _checkTimeout

demo/js/index.js:10035–10040

()

		//some browsers (like iOS) occasionally drop the requestAnimationFrame event when the user switches to a different tab and then comes back again, so we use a 2-second setTimeout() to sense if/when that condition occurs and then wake() the ticker.
		var _checkTimeout = function() {
				if (_tickerActive && _getTime() - _lastUpdate > 2000) {
					_ticker.wake();
				}
				setTimeout(_checkTimeout, 2000);
			};
		_checkTimeout();