Pinned Exact Version Secure

This page loads a specific version (4.17.21) from a trusted location. In production, pair this with an integrity hash and a simple manifest to track locked versions.

Expected: 4.17.21 Loaded: checking…

Exact pin (+ SRI recommended)

deterministic

Why it’s good: deterministic builds, reproducible debugging, and content verification with SRI. Changes require an intentional update.

  1. We self-host lodash-4.17.21.min.js from the repo.
  2. Below we verify the runtime version equals the expected pin.
  3. (Optional) Compute SHA-256 and add the integrity attribute.
Waiting…
View example manifest.json