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Test Info:

<!doctype html>
<meta charset=utf-8>
<title>IndexedDB: Error attributes are DOMExceptions</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/support.js"></script>
function(t, db) {
function(t, db) {
var tx = db.transaction('store', 'readwrite', {durability: 'relaxed'});
var store = tx.objectStore('store');
var r1 = store.add('value', 'key');
r1.onerror = t.unreached_func('first add should succeed');
var r2 = store.add('value', 'key');
r2.onsuccess = t.unreached_func('second add should fail');
r2.onerror = t.step_func(function() {
assert_true(r2.error instanceof DOMException);
assert_equals(, 'ConstraintError');
tx.oncomplete = t.unreached_func('transaction should not complete');
tx.onabort = t.step_func(function() {
assert_true(tx.error instanceof DOMException);
assert_equals(, 'ConstraintError');
'IDBRequest and IDBTransaction error properties should be DOMExceptions'