|  | <!DOCTYPE html> | 
|  | <title>IDBDatabase.transaction() - opening a transaction defaults to a read-only mode </title> | 
|  | <link rel="author" title="Microsoft" href="http://www.microsoft.com"> | 
|  | <script src="/resources/testharness.js"></script> | 
|  | <script src="/resources/testharnessreport.js"></script> | 
|  | <script src="support.js"></script> | 
|  |  | 
|  | <script> | 
|  |  | 
|  | var db, | 
|  | t = async_test(), | 
|  | open_rq = createdb(t); | 
|  |  | 
|  | open_rq.onupgradeneeded = function(e) { | 
|  | db = e.target.result; | 
|  | db.createObjectStore('readonly'); | 
|  | }; | 
|  | open_rq.onsuccess = function(e) { | 
|  | var txn = db.transaction('readonly'); | 
|  | assert_equals(txn.mode, "readonly", 'txn.mode'); | 
|  |  | 
|  | t.done(); | 
|  | }; | 
|  |  | 
|  | </script> | 
|  |  | 
|  | <div id="log"></div> |