Icomoon local data save

init.js

var dbrequest = indexedDB.open("IDBWrapper-storage", 1);
var db;
dbrequest.onsuccess = function(e) {
  db = e.target.result;
};

function getData(){
  var trans = db.transaction(["storage"], "readwrite");
  var store = trans.objectStore("storage");
  var request = store.get('icomoon');
  request.onsuccess = function(event){
    console.log("Result", request.result);
    var blob = new Blob([JSON.stringify(request.result)]);
    window.location.href = window.URL.createObjectURL(blob);
  };

}
function loadData(data){
  var trans = db.transaction(["storage"], "readwrite");
  var store = trans.objectStore("storage");
  var request = store.put(JSON.parse(data));
  request.onsuccess = function(event){
    console.log("Result", request.result);
  };
  request.onerror = function(){
    console.log(event);
  };
}