---
schema_version: "1"
id: 995cb3631ef26349843abc7fc71630bef4f7be3d7213f4a2f4d769d6e95ee0c4
title: Update Custom Cookies to Comply with RFC 6265 Standards
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/262-0-0/rn_b2c_rfc_6265_standards.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_b2c_rfc_6265_standards.htm&release=262.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 5ec95e1b69c84d4c30227e3bd82811da444694ea806dc1640d86b0166ebe5af9
description: To close security gaps, B2C Commerce has upgraded third-party libraries to adhere to RFC 6265 cookie compliance. Custom storefront code that emits noncompliant cookies, such as a domain attribute with a leading dot or invalid characters, now fails. Update your cookie-handling code in your On-Demand Sandbox instances to be compliant with the RFC 6265 standard.
products:
  - Cross Cloud
release: "262"
---
# Update Custom Cookies to Comply with RFC 6265 Standards

To close security gaps, B2C Commerce has upgraded third-party libraries to adhere to RFC 6265 cookie compliance. Custom storefront code that emits noncompliant cookies, such as a domain attribute with a leading dot or invalid characters, now fails. Update your cookie-handling code in your On-Demand Sandbox instances to be compliant with the RFC 6265 standard.

**Where:** This change applies to B2C Commerce.