Is there a way to tell MapFish to hide labels or even whole layers depending on the scale? So e.g. when scale is bigger than 1500, don't show labels (because there are too many)?
I let MapFish set the scale of the map (by using zoomToFeature to a layer), so I don't know the chosen scale when creating the input json. (otherwise I could achieve this by styling and not putting layers into the input json)