Hi, I am upgrading my UI checkout extension from 2025-04 to 2026-01. I used to be able to make an external HTTP fetch to a 3rd party endpoint successfully within a useEffect. Now that i’ve upgraded to 2026-01 with preact, the external HTTP fetch doesn’t seem to fire. Any thoughts?
Thanks
Hi @Claymind,
A few ideas for debugging:
Can you double check your app API access capabilities in Shopify Partners? Click into your app and go to “API access requests” - does your app have network access?
Do you see any relevant logs in the browser console?
Try moving your fetch out of the effect - does this change the behaviour?