Alibaba Terminal Technology

May 19, 2020 · Frontend Development

How to Build a JavaScript Sandbox for Micro‑Frontend Applications

This article explains why sandboxing is essential in micro‑frontend systems, compares single‑instance and multi‑instance scenarios, and provides step‑by‑step implementations of JavaScript and CSS isolation using iframe‑based proxies, PostCSS namespace wrapping, and reusable APIs from the open‑source ConsoleOS project.