Scene transitions where updateState is called can be navigated back using the browser "back" button.

hype-back-button

var hash = window.location.hash;
	if(hash.length != 0){
		window.location.hash="";
	}	

jQuery(document).ready(function($) {
	if (window.history && window.history.pushState) {
		$(window).on('popstate', function() {
			var hash = window.location.hash;
			var sceneName=hash.replace('#','');
			var hypeDocument = HYPE.documents['index']
			if(hash.length == 0){sceneName = hypeDocument.sceneNames()[0]; }
			hypeDocument.showSceneNamed(sceneName, hypeDocument.kSceneTransitionInstant);
		});
	}
});

function updateState(){ //Should be called AFTER jumping to the scene.
	var hypeDocument = HYPE.documents['index']
	var sceneName = hypeDocument.currentSceneName();
	window.history.pushState('forward', null, '#'+sceneName);
}