Limit AJAX Cart API

Short description of issue

the limitation of the AJAX Cart API for local theme preview does not allow access to work with the Cart / Cart-drawer

Reproduction steps

Hello,

I have a recurring problem when developing themes with the Shopify CLI. Whenever I start the theme locally with the shopify theme dev command or similar preview tools, most features work as expected. However, regardless of the code, I always get an error with every theme when my theme JavaScript functions send a request to the endpoint /cart/change (e.g., to update the shopping cart). The error message is:

Failed to proxy request to /cart/change with status 502 (Bad Gateway)

My question:
Is there a way to fix this problem or a workaround so that I can also test cart functions locally? Or is this a general Shopify CLI limitation t

Additional info

The problem only occurs in local preview mode. Everything works as expected on the real store (live or staging environment). According to my research, this is a known limitation of the Shopify CLI: The proxy does not support all AJAX Cart API endpoints, especially /cart/change, which is why this function is generally not usable in the local preview.

What type of topic is this

Feature request

What version of the CLI are you running? Does anything interesting show up in the logs?

I use the latest version CLI version. This was the error message when clicking on the cart button or on any body part of the cart: message": "│ Failed to proxy request to /cart/change with status 502 (Bad Gateway)

Is the theme using markets?

Do you have a Request ID you could share?