JavaScript SDK 3.37.0 | Fastly Documentation

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Geolocation at the edge
Optimize images on the fly
Redirect URLs at the edge
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December 10, 2025

javascript-sdk added

Added

Add client fingerprint properties (tlsJA4, h2Fingerprint, ohFingerprint) (#1248) (9390e8c)
Shielding support (#1241) (985c55e)

Prior change: JavaScript SDK 3.36.0