Add resource-fallback — zero-intrusion asset fallback plugin

[ben-lau]

Summary

Adds resource-fallback — a runtime resource fallback solution for frontend build outputs (Vite & Webpack).

What it does

When a CDN or static asset URL fails at runtime, resource-fallback automatically:

retry → switch to backup CDN → fall back to origin

…without requiring changes to application code. Works with sync/async JS, CSS chunks, React.lazy, Vue defineAsyncComponent, Vue Router lazy routes, and more.

Why it fits this list

• Vite 4+ plugin: @resource-fallback/vite-plugin
• Webpack 5+ plugin: @resource-fallback/webpack-plugin
• Shared browser runtime: @resource-fallback/core
• MIT licensed, actively maintained, with CI, tests, and docs

How it differs from similar tools

This is not a build-time CDN import plugin (e.g. swapping React/Vue to a CDN at compile time).

It targets a different problem: your own build artifacts (entry bundles, async chunks, CSS) failing to load in the browser due to CDN/network issues — with a unified retry + multi-source fallback strategy.

Compared to Webpack-only retry plugins, it also covers Vite, DOM <script>/<link> error handling, optional Hybrid Service Worker for images/fonts/CSS url(), per-host circuit breaker, kill switches, and CSP/SRI compatibility.

Links

• Repo: https://github.com/ben-lau/resource-fallback
• Docs: https://ben-lau.github.io/resource-fallback/en/
• npm (core): https://www.npmjs.com/package/@resource-fallback/core
• npm (vite-plugin): https://www.npmjs.com/package/@resource-fallback/vite-plugin
• npm (webpack-plugin): https://www.npmjs.com/package/@resource-fallback/webpack-plugin

README change

See diff — one line under [CATEGORY].