Hey... I had to abandon my attempt to get the components compiled to reactjs 1.0.0, at least for now. But in so doing I upgraded to the latest components ("com.olvind" %%% "scalajs-react-components" % "0.6.0") and ended up with a problem.
I have some iconmenus that are on the leftmost part of the screen, and they are being hidden by the browser!
I was using opendirection, but that's been removed. Following the hints, I tried to use a popover as suggested.
But now I get: