Customizer work in Safari browser

Topic summary

A compatibility issue exists with Shopify’s customizer tool when Safari’s “Prevent cross-site tracking” setting is enabled (which is the default). Users must currently disable this privacy protection feature for the customizer to function properly.

Key concerns:

  • Disabling cross-site tracking poses security and privacy risks
  • Safari has significant market share, making this a widespread issue
  • Multiple users are experiencing the same problem

Current status:

  • The issue remains unresolved
  • Users are requesting Shopify optimize their platform for Safari’s default privacy settings
  • A screenshot documenting the problem has been provided

The discussion seeks official attention from Shopify’s development team to address this browser compatibility problem.

Summarized with AI on October 27. AI used: claude-sonnet-4-5-20250929.

The problem is in the operation of the customizer with the “Prevent cross-site tracking” setting enabled in the Safari browser. In order for the customizer to work, you need to disable it, which I think is very bad for the security of the device and the use of your digital footprint by anyone. I would really like the Shopify team to deal with this issue, because Safari is used by quite a lot of people, please optimize your platform for this browser. Now with the setting enabled (it is enabled by default), the customizer does not work. Screenshot attached

1 Like

Thanks for the post, I’m having the same issue. Wasn’t sure what the actual issue was.
Don’t want to enable cross-site-tracking, either :wink: