title: Fail to open IndexedDB database within Google Chrome
body: <p>what's wrong with this code in Google Chrome</p>
  
  <pre><code>r = webkitIndexedDB.open(db_name,1);
  r.onsuccess = success_callback;
  r.onerror = error_callback;
  r.onupgradeneeded = function(e){
     var db = e.currentTarget.result;
     db.createObjectStore('os_name',{keyPath:id,autoIncrement:true});
  };
  </code></pre>
  
  <p>it's works in firefox (mozIndexedDB) but not in chrome. even onerror won't be triggered. anyway i get this error</p>
  
  <pre><code>Uncaught Error: NOT_FOUND_ERR: DOM IDBDatabase Exception 3
  </code></pre>