Short description of issue Possible API issues with local Dev - not allowing add to cart Link to Shopify Store https://127.0.0.1:9292/products/a-product Reproduction steps Today I am having some issue locally developing in the cart area of the site. Live site everything is working as expected no …

Further update from local dev console - logged out and back in to make sure that was not the issue 17:02:38 Request » POST 401 /cart/add 121ms

Failed requests to /api/collect can be ignored. It sounds like the real problem you’re hitting is that cart requests are returning a 401. Are there any other error messages?

What is - myshopify.com/api/collect = it is in 404 local dev

Online Store and Theme Development

Gray-Shopify February 3, 2026, 6:10pm 4

Ah, looks like the 401 issue is being tracked here: CLI > Theme Dev > cart ajax 401 - #18 by Donal-Shopify

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What is - myshopify.com/api/collect = it is in 404 local dev

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