Purge the cache

Enter an esm.sh URL or package name. An exact version (react@19.0.0) drops its cached artifacts — built modules, type declarations, the local npm store and the resolution cache — so the next request rebuilds it from scratch. A bare name, dist-tag, range or branch (react, react@next, gh/user/repo@main) only refreshes the version resolution, so the next request picks up a newer version without rebuilding the current one. Useful after publishing a new version, the same way the jsDelivr purge tool works.