This is extremely bad news for people doing adventure games since there are a lot of layout changes and a lot of instances where there might be a cutscene at a beginning of a layout where no input action is required by the user. Adding a press to continue or whatever to every new layout pretty much makes for an annoying user experience.
Also i noticed atm when using a Gamepad instead of Keyboard Input, Music will basically never start playing at all unless you click or use the keyboard. This is unfortunate, but maybe something Google can do something about?
Really too bad i was hoping to maybe make a browser version of my game as well...
EDIT: Just to make sure i understand correctly, are we talking about touching the screen ONCE for a game or of touching the screen each time a new layout is loaded? Because the former is already the case in NW.js and that i can live with.
Referring to this (admittedly old) thread where Alex Francois had a similiar problem with users having to touch the screen in every layout before any streamed audio started playing: