I want to follow the steps indicated in #857, but I don't manage to set up the size at 100% both height and width with the following code. It should be working according to the documentation, but it's not.

    // The "normal" size of the presentation, aspect ratio will be preserved
    // when the presentation is scaled to fit different resolutions. Can be
    // specified using percentage units.
    width: 100%,
    height: 100%

What exactly is wrong here?