---
title: cartSetIdDefault
description: Creates a function that returns a header with a Set-Cookie on the cart ID.
api_version: 2026-04
api_name: hydrogen
source_url:
  html: https://shopify.dev/docs/api/hydrogen/latest/utilities/cartsetiddefault
  md: https://shopify.dev/docs/api/hydrogen/latest/utilities/cartsetiddefault.md
---

cart​Set​Id​Default

Not supported in this version.