1 files changed, 4 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/ready-state-destroyed-execution-context.html b/testing/web-platform/tests/IndexedDB/ready-state-destroyed-execution-context.html
index 8194052391..6b2677fae7 100644
--- a/testing/web-platform/tests/IndexedDB/ready-state-destroyed-execution-context.html
+++ b/testing/web-platform/tests/IndexedDB/ready-state-destroyed-execution-context.html
@@ -21,6 +21,10 @@ promise_test(async t => {
     const openRequest = iframe.contentWindow.indexedDB.open(dbname);
     assert_equals(openRequest.readyState, 'pending');
     iframe.remove();
+    await new Promise(resolve => {
+      openRequest.onerror = resolve;
+      openRequest.onsuccess = resolve;
+    });
     assert_equals(openRequest.readyState, 'done');
 }, 'readyState accessor is valid after execution context is destroyed');