<!DOCTYPE html>
<html>
<head>
  <script>
  var res = {};
  var request = indexedDB.open(parent.location, 2);
  request.onblocked = function() {
    res.blockedFired = true;
  }
  request.onupgradeneeded  = function(e) {
    var db = e.target.result;
    res.version = db.version;
    res.storeCount = db.objectStoreNames.length;

    var trans = request.transaction;
    trans.objectStore("mystore").get(42).onsuccess = function(e) {
      res.value = JSON.stringify(e.target.result);
    }
    trans.oncomplete = function() {
      parent.postMessage(JSON.stringify(res), "http://mochi.test:8888");
    }
  };

  </script>
</head>
<body>
  This is page two.
</body>
</html>