From 21cb9828fb314099510f4904a0ea2a10679c3c9b Mon Sep 17 00:00:00 2001
From: Denis Pushkarev <zloirock@zloirock.ru>
Date: Fri, 7 Jul 2023 05:15:38 +0700
Subject: [PATCH] fix `AsyncIteratorPrototype` option in the configurator,
 close #1268

---
 README.md                        | 11 +++++++++++
 packages/core-js/configurator.js |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c1e22e3cdd0f..f473df89576b 100644
--- a/README.md
+++ b/README.md
@@ -2491,6 +2491,17 @@ configurator({ USE_FUNCTION_CONSTRUCTOR: true });
 
 require('core-js/actual/async-iterator');
 
+(async function * () { /* empty */ })() instanceof AsyncIterator; // => true
+```
+- As an alternative, you could pass to the `core-js/configurator` an object that will be considered as `%AsyncIteratorPrototype%`:
+```js
+const configurator = require('core-js/configurator');
+const { getPrototypeOf } = Object;
+
+configurator({ AsyncIteratorPrototype: getPrototypeOf(getPrototypeOf(getPrototypeOf(async function * () { /* empty */ }()))) });
+
+require('core-js/actual/async-iterator');
+
 (async function * () { /* empty */ })() instanceof AsyncIterator; // => true
 ```
 ##### [`Iterator.range`](https://github.com/tc39/proposal-Number.range)[⬆](#index)
diff --git a/packages/core-js/configurator.js b/packages/core-js/configurator.js
index 57e019dd9b3b..a556cc5ae28e 100644
--- a/packages/core-js/configurator.js
+++ b/packages/core-js/configurator.js
@@ -21,7 +21,7 @@ module.exports = function (options) {
       shared[USE_FUNCTION_CONSTRUCTOR] = !!options[USE_FUNCTION_CONSTRUCTOR];
     }
     if (hasOwn(options, ASYNC_ITERATOR_PROTOTYPE)) {
-      shared[USE_FUNCTION_CONSTRUCTOR] = options[ASYNC_ITERATOR_PROTOTYPE];
+      shared[ASYNC_ITERATOR_PROTOTYPE] = options[ASYNC_ITERATOR_PROTOTYPE];
     }
   }
 };