Setting an app proxy for my custom app is no longer working on a development store.
Shopify App proxies for custom apps use to be in App Settings > Extensions > Online Store. Now, they have been moved to App Settings.
Since this move, setting an app proxy on my development store has been giving Shopify 404s. Existing proxies are still working, but trying to update or add new app proxies is no longer working.
I removed an existing proxy and then tried to replace it with the new interface, but it now returns a Shopify 404 instead of making a request, and I can confirm that the request is not hitting my endpoints.
Can anyone advise on how to resolve this issue for my development store?