Alas, none had done it -- until yesterday, when Amazon announced their AWS SDK for JavaScript in the Browser. Theoretically, it does for their web services, what Dropbox did for theirs.

Node 18 support in AWS Lambda! They're also including v3 of the AWS JavaScript SDK now, which is great news if you're using that - one less thing to bundle in your deployments.

The SDK supports Amazon’s web identity federation feature (you wouldn’t want to add your AWS credentials in your HTML and JavaScript, after all).