Why does my embedded app still redirect despite following iframe protection settings?

Topic summary

A developer is experiencing an unexpected redirect issue with their Shopify embedded app despite properly implementing iframe protection settings.

The Problem:

  • The app continues to redirect with the force_legacy_domain=1 parameter
  • This occurs even though iframe protection configurations have been followed correctly

Current Status:

  • The developer has shared a screenshot showing the redirect behavior
  • No responses or solutions have been provided yet
  • The issue remains unresolved and awaits community input on potential causes or additional configuration steps needed
Summarized with AI on November 12. AI used: claude-sonnet-4-5-20250929.

Hello,

My app follows the iframe protection settings, but still redirects with force_legacy_domain=1

Is there an extra step I need to take?

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