| <!doctype html> | 
 | <meta charset=utf-8> | 
 | <title>IndexedDB: ES bindings - Inject a key into a value - Keys bypass setters</title> | 
 | <meta name="help" | 
 | href="https://w3c.github.io/IndexedDB/#inject-key-into-value-keys-bypass-setters"> | 
 | <script src="/resources/testharness.js"></script> | 
 | <script src="/resources/testharnessreport.js"></script> | 
 | <script src="support-promises.js"></script> | 
 | <script> | 
 |  | 
 | promise_test(async t => { | 
 |  const db = await createDatabase(t, db => { | 
 |  db.createObjectStore('store'); | 
 |  }); | 
 |  | 
 |  let setter_called = false; | 
 |  Object.defineProperty(Object.prototype, '10', { | 
 |  configurable: true, | 
 |  set: value => { setter_called = true; }, | 
 |  }); | 
 |  t.add_cleanup(() => { delete Object.prototype['10']; }); | 
 |  | 
 |  const tx = db.transaction('store', 'readwrite'); | 
 |  const result = await promiseForRequest(t, tx.objectStore('store').put( | 
 |  'value', [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 'key'])); | 
 |  | 
 |  assert_false(setter_called, | 
 |  'Setter should not be called for key result.'); | 
 |  assert_true(result.hasOwnProperty('10'), | 
 |  'Result should have own-property overriding prototype setter.'); | 
 |  assert_equals(result[10], 'key', | 
 |  'Result should have expected property.'); | 
 | }, 'Returning keys to script should bypass prototype setters'); | 
 |  | 
 | </script> |