Load HTML fragment as a child of body, and perform slide transition
Load HTML fragment as a child of body, but do not perform transition
Note that this child is automatically hidden by ViewController,
so nothing will be shown.
Load HTML fragment as a child of "container" view, and perform transition without animation
Load JSON as a child of "container" view, and perform flip transition
Load JSON as a child of "container" view, and write a console message when the view is ready