How to keep Foundation Off-Canvas open while using web page

I am using Foundation’s Off-Canvas navigation, however I want to be able to keep it open while I scroll and click around on a web page. Clearly it wraps everything with a big div, which when clicked, …

Leaflet circleMarkers donĀ“t show up

I am trying to draw hundres of circleMarker in a Leaflet map, I am using flask and foundation.js, the same code work in different app built with bootstrap.js This is my code: