TR46 Unicode URL Normalization Package Integration

This workflow integrates the tr46.js library, an implementation of the Unicode TR46 specification, which handles the normalization and punycode conversion of internationalized domain names (IDNs) for URLs. It processes domain labels to conform to WHATWG URL standards, preventing issues with non-ASCII characters in automated workflows involving web scraping, API calls, or URL generation.

Key benefits include robust handling of Unicode domains, automatic conversion to Punycode (xn-- format) for compatibility with systems that don't support IDNs natively, and validation against TR46 rules to avoid invalid URLs. This is particularly useful in n8n for global e-commerce, international marketing automations, or any workflow dealing with user-submitted URLs from diverse locales.

Use cases: Normalize domains before HTTP requests to prevent failures; validate international URLs in form submissions; prepare data for DNS lookups or email campaigns. The package supports testing via Mocha and generates mapping tables for efficiency, making it reliable for production automations. Dev dependencies like request and mocha ensure easy integration and verification in Node.js-based n8n environments.