I built a map using Leaflet and markercluster.js, and I'm having a strange issue where after I click on the first popup, I'm unable to open any other popup. This happens whether you close the first popup manually or not.

When I don't use markercluster.js, the popups appear as normal, so I know it has something to do with that library. This is the second time I have used this library; the first time I had no issues. I'm getting no errors in the console.

Also, I had this issue regardless of if the .openPopup() method was attached to the marker variable.

Code below:

var puetrasList = new L.MarkerClusterGroup();

          for (i=0 ; i < dataStore.length ; i++){
              var a, point;
              a = dataStore[i];
              lat = parseFloat(dataStore[i][0]);
              lng = parseFloat(dataStore[i][1]);
              title = "<strong><h2>" + dataStore[i][2] + "</strong></h2>" +
                                  "<p>" + >dataStore[i][3] + "</p>" +
                                  "<p>" + >dataStore[i][4] + ", " + dataStore[i][5] + "</p>" +
                                  "<p>" + >dataStore[i][6] + "</p>";
              marker = new L.Marker(new L.LatLng(lat, lng));

          //----- Summon Map ---->
  • map.addLayer(layer); what is layer?
    – L. Sanna
    Jun 4, 2013 at 20:53

1 Answer 1


Use marker on click in the for loop.It will shows the popup

 marker.on('click', function (e) {              


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