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Test Info:

// META: title=IndexedDB: Test IDBFactory open() error event properties
// META: global=window,worker
// META: script=resources/support.js
'use strict';
async_test(t => {
const dbname = self.location + '-' + t.name;
indexedDB.deleteDatabase(dbname);
const open = indexedDB.open(dbname);
open.onsuccess = t.unreached_func('open should not succeed');
open.onupgradeneeded = t.step_func(() => {
const tx = open.transaction;
tx.abort();
});
open.onerror = t.step_func(e => {
assert_equals(e.target, open, 'event target should be request');
assert_equals(e.type, 'error', 'Event type should be error');
assert_true(e.bubbles, 'Event should bubble');
assert_true(e.cancelable, 'Event should be cancelable');
t.done();
});
}, 'Properties of error event from failed open()');