It works! I don't like the engine chooser. I click on it with my thumb and it selects MicroB while I just want to open the roll down to select webkit. Some kind of confirm button, or simply 2 buttons where one pushes either (and bigger, finger friendly) would be welcome. It also is not WebKit chooser because you can also pick Gecko as option. So the choices are for MicroB browser the Gecko rendering engine, or the WebKit rendering engine.