I am having trouble with one of my visualforce page that I want to be able to run in the Salesforce1 App. Right now it is working perfectly if I use a custom link to open up the VF page. But when I try to open the page up from the publisher action instead, it will not work. Please find my controller and VF page below:

Apex Class
 
global with sharing class LeadController{

    public Id leadId{
        get{
            return Id.valueOf(ApexPages.CurrentPage().getparameters().get('id'));
        }
    }
    
    private Lead lead{get; set;}
    
    public String lat{
        get{
            if(lead == null || lead.Location__Latitude__s == null)
                return 'null';
            
          return lead.Location__Latitude__s + '';
        }
    }
    
    public String lng{
        get{
            if(lead == null || lead.Location__Longitude__s == null)
                return 'null';
            
          return lead.Location__Longitude__s + '';
        }
    }
    
    global leadController(ApexPages.StandardController controller) {
    lead = [select Id, Location__Latitude__s, Location__Longitude__s from Lead where Id = :leadId];
    }
    
    public PageReference test(){
      return null;
    }

    @RemoteAction
    global static String Checkin(Id planId, Double latitude, Double longitude){
        Lead checkin = new Lead(
            Id = planId
            , Location__Latitude__s = latitude
            , Location__Longitude__s = longitude
        );
        
        update checkin;
        
        system.debug('Lead: ' + checkin);
        
        return checkin.Id;
    }
}
 
Visualforce Page
 
<apex:page standardController="Lead" extensions="LeadController" sidebar="false" showHeader="false">
<script>
(function () {
    var leadId = '{!leadId}';
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(function(position){
           
            console.log(position.coords);
       
            Visualforce.remoting.Manager.invokeAction(
                '{!$RemoteAction.LeadController.Checkin}'
                , leadId
                , position.coords.latitude
                , position.coords.longitude
                , function(result, event){
                    //window.location = "../../../" + leadId;
                    window.history.back();
                },
                {escape: true}
            );
        });
    } else {
        alert('This device does not support Geolocation operation.');
        //window.location = "../../../" + leadId;
        window.history.back();
    }
})();
</script> 
<div style="text-align:center;height: 100%;padding-top: 10%;">
    <img src="../../../../resource/0/loading"/>
</div>
</apex:page>

Thank you inadvance.