| <!doctype html> |
| <meta charset=utf-8> |
| <title>IndexedDB: ES bindings - Inject a key into a value - Values bypass chain</title> |
| <meta name="help" |
| href="https://w3c.github.io/IndexedDB/#inject-key-into-value-values-bypass-chain"> |
| <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', {autoIncrement: true, keyPath: 'a.b.c'}); |
| }); |
| |
| Object.prototype.a = {b: {c: 'on proto'}}; |
| t.add_cleanup(() => { delete Object.prototype.a; }); |
| |
| const tx = db.transaction('store', 'readwrite'); |
| tx.objectStore('store').put({}); |
| const result = await promiseForRequest(t, tx.objectStore('store').get(1)); |
| |
| assert_true(result.hasOwnProperty('a'), |
| 'Result should have own-properties overriding prototype.'); |
| assert_true(result.a.hasOwnProperty('b'), |
| 'Result should have own-properties overriding prototype.'); |
| assert_true(result.a.b.hasOwnProperty('c'), |
| 'Result should have own-properties overriding prototype.'); |
| assert_equals(result.a.b.c, 1, |
| 'Own property should match primary key generator value'); |
| assert_equals(Object.prototype.a.b.c, 'on proto', |
| 'Prototype should not be modified'); |
| }, 'Returning values to script should bypass prototype chain'); |
| |
| </script> |
