Handle null referrer in pixel tracking route

Dikirim

13 Februari 2026 pukul 07.39 UTC

Penulis

juanisidoro

Commit

3d8d5a7

request.headers.get("referer") returns null when the header is absent (e.g. email clients). The Zod schema uses .optional() which accepts undefined but rejects null, causing silent validation failure and pixel events not being recorded. Fixes #4028