name: Top-level await
description: The `await` keyword, when used at the top level of a module (outside of an async function), delays parent module execution until after a promise fulfills.
spec: https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-function-definitions
group: javascript
# TODO: https://github.com/web-platform-dx/web-features/issues/1971
# Status changed: https://github.com/web-platform-dx/web-features/pull/2921/
# 2025-05-02 — high → false — In Safari, simultaneous imports of a module with a top-level await fails with a ReferenceError.
# References:
# - https://github.com/mdn/browser-compat-data/pull/26510
# - https://bugs.webkit.org/show_bug.cgi?id=242740
compat_features:
  - javascript.operators.await.top_level