Please discuss and report bugs related to HTML-Widgets. In light of this it is not possible from our side to fully test and document everything that can be supported. There are also differences as to what iOS and Android support natively, therefore we urge you to test on both platforms. Please let us know what works and does not work. Some might be restricted to the webkits used on iOS and Android. You are also strongly encouraged to share best practices and tips with others. We will also keep a list of things that do not work and hopefully that will save you sometime.