I have a leaflet map where I\'m dynamically adding markers.
I want to call the popup for a marker when I hover over it in addition to when I click the marker.
My
The popup is actually loading underneath the cursor and 'stealing' the mouse from the Marker, triggering the Marker.mouseout() event, which causes the popup to close and re-triggers the Marker.mouseover() event... and the cycle continues which is why you see the 'flicker'.
I have seen this happen depending on the zoom level (usually when zoomed right out).
Try adding an offset into your popup options to get it out of the way:
function makeMarker(){
var Marker = L.marker...
Marker.on('mouseover', function(){Marker.bindPopup('HI', {'offset': L.point(0,-50)}).openPopup();});
Marker.on('mouseout', function(){Marker.closePopup();});
}