Possibly the most common use case in all of JavaScript for async and await is using the browser’s built-in fetch API. Listing 1 declares an async function and uses await within it.

Overloading Google's Fetch & Mobile Testing Tools With Too Many JavaScript & CSS Includes Mar 1, 2016 - 8:16 am 1 — by Barry Schwartz ...

Google To Add JavaScript Rendered Code In Fetch & Render Tool May 18, 2017 - 7:41 am 3 — by Barry Schwartz ...