[Neznayka]

<script>
"use strict";

(async () => {
let url = '...';
let response = await fetch(url);
let result = await response.json();
for (let item of result) {console.log(item)};
})()
</script>

начинает падать ошибка:
Uncaught SyntaxError: await is only valid in async functions and the top level bodies of module

upd: все заработало в итоге.