Web Fragments

Web Fragments (v0.8.2) is a framework-agnostic micro-frontends architecture that isolates each fragment's JavaScript execution in a separate context while sharing the same DOM. Developed by Cloudflare, it supports client and server-side rendering, soft navigation, custom CSP, and SSR piercing. Released regularly (monthly patches/minors), it is production-tested at Cloudflare. Unlike other solutions, it offers true JS context isolation via a custom gateway and client-side virtualization, enabling incremental migration from monolithic apps.