Loading and Saving TaffyDB data from cookies

I flopped around a good long time over this one:

I'm using cookies as a datastore, but had an issue with TaffyDB not stringify correctly. The TaffyDB author, Ian Smith provided some critical help, and here is the working (though probably not ideal solution):

 function clone(o) {  
   if(typeof(o) != 'object') return o;  
   if(o == null) return o;  
   var newO = new Object();  
   for(var i in o) newO[i] = clone(o[i]);  
    return newO;  
 }  
 function sav(){  
   var cookieData = clone(chardata);  
   cookieData.skills = cookieData.skills.get();  
   cookieData = TAFFY.JSON.stringify(cookieData);  
   var d = new Date(2020, 02, 02);  
   document.cookie = 'chardata=' + cookieData + ';expires=' + d.toUTCString();  
 }  
 function lod(){  
   if (document.cookie.length > 0) {  
     c_start = document.cookie.indexOf("chardata=");  
     if (c_start != -1) {  
       c_start = c_start + 9 //c_name.length + 1;  
       c_end = document.cookie.indexOf(";", c_start);  
       if (c_end == -1) {  
         c_end = document.cookie.length;  
       }  
       cookie_data = document.cookie.substring(c_start, c_end);  
       chardata = TAFFY.JSON.parse(unescape(cookie_data));  
       chardata.skills = TAFFY(chardata.skills);  
     }  
   }  
 }  

The biggest stumbling block came from the fact that assigning chardata to a temporary var (and then stringify-ing it) changed my Taffy object into a string. Cloning the db fixed the issue.