Compact AWS Client for Modern JS

aws4fetch is a JavaScript library designed for signing AWS requests using the AWS Signature Version 4 process. It provides a compact client (6.4kb minified, 2.5kb gzipped) tailored for modern JavaScript environments that natively support the Web `fetch` API and `SubtleCrypto`. This makes it particularly well-suited for serverless edge computing platforms like Cloudflare Workers, as well as modern web browsers. The library is currently at version `1.0.20` and maintains an active release cadence, frequently adding support for new AWS features and refining existing functionality. A key differentiator is its built-in exponential backoff with full jitter retry strategy, enhancing the reliability of AWS interactions. Unlike traditional Node.js-centric AWS SDKs, `aws4fetch` leverages browser-native APIs, prioritizing minimalism and performance in environments where those APIs are readily available.