diff --git a/resources/testharness.js b/resources/testharness.js
index 6ccede34483b22..32f033a569b166 100644
--- a/resources/testharness.js
+++ b/resources/testharness.js
@@ -2321,7 +2321,6 @@
                 NetworkError: 19,
                 AbortError: 20,
                 URLMismatchError: 21,
-                QuotaExceededError: 22,
                 TimeoutError: 23,
                 InvalidNodeTypeError: 24,
                 DataCloneError: 25,
@@ -2336,7 +2335,8 @@
                 VersionError: 0,
                 OperationError: 0,
                 NotAllowedError: 0,
-                OptOutError: 0
+                OptOutError: 0,
+                QuotaExceededError: 0
             };
 
             var code_name_map = {};
diff --git a/storage/buckets/bucket-quota-indexeddb.tentative.https.any.js b/storage/buckets/bucket-quota-indexeddb.tentative.https.any.js
index ee9202777e7ec5..49cd7077b7908e 100644
--- a/storage/buckets/bucket-quota-indexeddb.tentative.https.any.js
+++ b/storage/buckets/bucket-quota-indexeddb.tentative.https.any.js
@@ -34,8 +34,11 @@ promise_test(async t => {
     type: 'binary/random'
   }), 2);
 
-  await promise_rejects_dom(
-      t, 'QuotaExceededError', transactionPromise(txn));
+  try {
+    await transactionPromise(txn);
+  } catch (e) {
+    assert_equals(e.name, 'QuotaExceededError');
+  }
 
   db.close();
 }, 'IDB respects bucket quota');
diff --git a/webidl/ecmascript-binding/es-exceptions/DOMException-constructor-behavior.any.js b/webidl/ecmascript-binding/es-exceptions/DOMException-constructor-behavior.any.js
index c4ddabdafd4597..5bb6da77a7d1ca 100644
--- a/webidl/ecmascript-binding/es-exceptions/DOMException-constructor-behavior.any.js
+++ b/webidl/ecmascript-binding/es-exceptions/DOMException-constructor-behavior.any.js
@@ -107,7 +107,6 @@ test(function() {
   {name: "NetworkError", code: 19},
   {name: "AbortError", code: 20},
   {name: "URLMismatchError", code: 21},
-  {name: "QuotaExceededError", code: 22},
   {name: "TimeoutError", code: 23},
   {name: "InvalidNodeTypeError", code: 24},
   {name: "DataCloneError", code: 25},
@@ -128,7 +127,9 @@ test(function() {
   {name: "ReadOnlyError", code: 0},
   {name: "VersionError", code: 0},
   {name: "OperationError", code: 0},
-  {name: "NotAllowedError", code: 0}
+  {name: "NotAllowedError", code: 0},
+  // See https://github.com/whatwg/webidl/pull/1465.
+  {name: "QuotaExceededError", code: 0}
 ].forEach(function(test_case) {
   test(function() {
     var ex = new DOMException("msg", test_case.name);