I have reproduced the issue on the latest CLI version. Yes, I am on the latest version I have searched existing posts and this report is not a duplicate. Yes, this isn’t a duplicate In which of these areas are you experiencing a problem? Theme Expected behavior Cart Items should be added/updated/…

Sorry to chase, but have Shopify got any update on this yet? It’s causing a massive headache and bottleneck at the moment, developing interactive parts of themes.

I’ve got same issues, No solution yet…?

This causing massive headache, I can not send a single request to Cart API locally without immediately getting served with a 401. It feels like a core part of CLI is unusable.

@Liam-Shopify @Donal-Shopify Any update on this? Almost a month of working around this and not being able to use the CLI for key parts of local theme dev is really starting to become a huge drag on development. For reference, this is an example of the barrage of console errors I get on any store af…

I’m having the same issues as everyone else, but also keep getting “The access token provided is expired, revoked, malformed, or invalid for other reasons” error every so often. It’s slowing development right down.

@ceri_waters I’ve been having this error ever since these cart ajax issues, so I’m thinking it might be related to something here. I’ve never had this error before otherwise. Fingers crossed it’s all fixed soon!

It appears 3.91.0 may have fixed this now!

[image] namboozle: appears 3.91.0 may have fixed this now! I dont believe it has, I upgraded and still getting the same errors

Appears the issue is still there. It did allow me to send 3 requests to cart API this time before blocking me though. Let’s hope a proper fix is not far away…

CLI > Theme Dev > cart ajax 401

Shopify CLI and Libraries

ceri_waters February 23, 2026, 8:06am 40

@Ketan_Mistry That issue is raised here: Shopify Theme Dev > Access Token Expired

Topic		Replies	Views
429 Too many requests Shopify CLI and Libraries theme-commands , app-dev-on-localhost	55	1956	September 2, 2026
Aggressive bot detection with 429 errors AJAX Cart API Online Store and Theme Development ajax-api	112	3834	September 29, 2026
Limit AJAX Cart API Online Store and Theme Development ajax-api , cli-themes	3	146	December 9, 2025
Your connection needs to be verified before you can proceed Shopify CLI and Libraries theme-commands	35	1837	July 27, 2026
Connecting cursor to shopify Shopify CLI and Libraries app-dev-on-localhost	1	168	February 26, 2026

CLI > Theme Dev > cart ajax 401

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