I believe the CORS setup may not be correct for the Theme > Customize to allow for Storefront API calls for stores that have a custom domain. I’ve been receiving reports from merchants that my app is not visible in the Theme > Customize but it works fine on their storefront. Looking at the console…

Storefront GraphQL calls blocked in Themes > Customize due to CORS

burst December 13, 2024, 5:51pm 3

I modified my Storefront API calls to use the *.myshopify.com url, which is found in Liquid as shop.permanent_domain. This appears to fix the CORS issue.

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Storefront GraphQL calls blocked in Themes > Customize due to CORS

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