Cytoscape hit-tests from events / visibility / display, never opacity,
so an element the isolate filter took to opacity 0 stays fully clickable:
taps on apparently blank canvas navigated to papers the user couldn't see,
dragged them, and ate the background tap that clears the selection. So gate
events on opacity here.
Cytoscape hit-tests from
events/visibility/display, never opacity, so an element the isolate filter took to opacity 0 stays fully clickable: taps on apparently blank canvas navigated to papers the user couldn't see, dragged them, and ate the background tap that clears the selection. So gateeventson opacity here.