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RFC6265 Cookie Compliance Enforced in B2C Commerce 26.5 Release

Publish Date: May 22, 2026
Description

Customers may experience one or more of the following symptoms if their storefronts utilize these non-compliant cookies:

  • Storefront features breaking unexpectedly;
  • Cookie values being dropped, corrupted, or not read correctly;
  • Search or filtering functionality failing where cookies store refinement state;
  • Errors in Log Center related to cookie processing.
Resolution

Update custom code to Base64-encode cookie values before setting them, and Base64-decode them on read. This ensures full RFC6265 compliance and future compatibility.

  • On write: encode the cookie value using Base64 before storing
  • On read: decode the Base64 value before processing

 

Note: Rolling back the 26.5 release is not supported.

Knowledge Article Number

005384995

 
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Salesforce Help | Article