I Built a Polyfill for the Browser's New Language Detection API

Name: I Built a Polyfill for the Browser's New Language Detection API
Availability: InStock
Author: unforbiddenYet

by unforbiddenYet·May 5, 2026·1 point·0 comments

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AI Analysis

●●SolidBig BrainNiche Gem

Uses Google's CLD3 neural net to match Chrome's native API behavior exactly.

Strengths

•Spec-compliant interface means zero refactoring when native support lands.
•Automatically detects native support and steps aside to avoid overhead.
•Bundles the actual CLD3 model weights for consistent detection accuracy.

Weaknesses

•CLD3 model weights add significant bundle size compared to lightweight heuristics.
•Limited utility until more browsers adopt the underlying experimental API spec.

Post Description

Only Chrome shipped the experimental Web API that I need for cross-browser content moderation. So I built the polyfill myself and open-sourced it.

Issues and PRs are very welcome – this is a young project, and there’s room to improve it.

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