text: require('proof')(18, async okay => {
      await require('./harness')(okay, 'transaction-abort-request-error')
      await harness(async function () {
  
          indexeddb_test(
            (t, db) => {
              db.createObjectStore('store');
            },
            (t, db) => {
              const tx = db.transaction('store');
              const request = tx.objectStore('store').get(0);
              tx.abort();
              request.onsuccess = t.unreached_func('request should not succeed');
  
              let connection_saw_error = false;
              let transaction_saw_error = false;
  
              request.onerror = t.step_func(e => {
                assert_equals(request.readyState, 'done',
                              'Request\'s done flag should be set');
                assert_equals(request.result, undefined,
                              'Request\'s result should be undefined');
                assert_equals(request.error.name, 'AbortError',
                              'Request\'s error should be AbortError');
  
                assert_equals(e.target, request, '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 cancelable');
  
                assert_true(connection_saw_error,
                            'Event propagated through connection');
                assert_true(transaction_saw_error,
                            'Event propagated through transaction');
                t.done();
              });
  
              // Event propagates via "get the parent" on request and transaction.
  
              db.addEventListener('error', t.step_func(e => {
                connection_saw_error = true;
                assert_equals(e.target, request, '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 cancelable');
              }), true);
  
              tx.addEventListener('error', t.step_func(e => {
                transaction_saw_error = true;
                assert_equals(e.target, request, '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 cancelable');
  
                assert_true(connection_saw_error,
                            'Event propagated through connection');
              }), true);
            },
            'Properties of error events fired at requests when aborting a transaction');
  
      })
  })
  