Binding to head elements in KnockoutJS

By default, KnockoutJS binds to <body>, by the look of things. If you have something like:

<html>
	<head>
		<title data-bind="text: title"></title>
	</head>
	<body>
		...
		<script>
			var vm = {
				title: ko.observable("This is the page title")
			};
			ko.applyBindings(vm);
		</script>
	</body>
</html>

The title will not be bound. Instead, you’ll need to use (and I’m using jQuery):

<html>
	<head>
		<title data-bind="text: title"></title>
	</head>
	<body>
		...
		<script>
			var vm = {
				title: ko.observable("This is the page title")
			};
			ko.applyBindings(vm, $('html')[0]);
		</script>
	</body>
</html>

You could also apply the binding twice, once to the head, and once to the body.