Fresh 2.3 ships zero JavaScript by default

Static pages now truly ship no JavaScript, islands, or preload headers—zero configuration required.

Summary

Eliminates the 5–9 KB gzip penalty on every page that doesn't use interactivity. Reduces payload and improves metrics for content-heavy sites without touching configuration.

Why it matters

Eliminates the 5–9 KB gzip penalty on every page that doesn't use interactivity. Reduces payload and improves metrics for content-heavy sites without touching configuration.

Implementation verdict

Replaces the implicit client-entry script injected in 2.2. Requires only upgrade; existing islands and partials continue working. Worth upgrading immediately if you serve static content.

Sources

1.pages ship no JavaScript unless they need to
2.Every page ended up with a small client-entry script to bootstrap the island reviver and partials engine, even when neither was used
3.Fresh now checks whether the page actually uses islands or partials (f-client-nav) before injecting anything
4.Static pages will just stop shipping JavaScript after upgrading
5.over 100 commits from 20 contributors

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