We tried to use it in our LWC async/await
but it is not working only on Firefox. Here is a simple example. On the Firefox this alert doesn’t show.
async init() { let promise = new Promise((resolve, reject) => { setTimeout(() => resolve("done!"), 1000) }); let result = await promise; // wait until the promise resolves (*) alert(result); // "done!" } connectedCallback() { this.init();