Session Token not resolved in localhost

Retired Boards Appdev Tools

Topic summary

A developer is experiencing issues with session token resolution while developing a Shopify embedded app locally using ngrok.

Setup Details:

  • Using ngrok for local development as recommended by Shopify guides
  • App Bridge configuration includes the ngrok host (xxx.eu.ngrok.io/)
  • Same host is registered in Partners Dashboard
  • Using authenticatedFetch function with App Bridge packages (versions 3.7.2-3.7.3)

Problem:

  • Session token fails to resolve during local development
  • No console output appears after the fetch function executes
  • The app works correctly when testing with a Demo store, but not in local environment

Current Status:

  • Developer has been stuck on this issue for a week
  • Shopify support directed them to submit the issue directly to the App Bridge GitHub repository
  • Issue remains unresolved and ongoing
Summarized with AI on November 21. AI used: claude-sonnet-4-5-20250929.
3

Already did that, want to get help everywhere, because stuck for a week with it.