Hi folks, it looks like that every single http request from our POS I Extensions towards our app url is failing with POS version 10.19.0. Tested on multiple iPhones & iPads. This happens for our (OpenFiskal) POS UI Extensions, but also for others. Any clue? We are using the “relative path mecha…

@Christof_Zirkler we’ve identified the issue and have made a mitigation that will be applied on the next settings sync (You can force this by tapping on Connectivity icon in bottom left corner → Store data → Refresh all) Could you verify if this has mitigated the issue for you?

URGENT Shopify POS 10.19.0: Every HTTP request failing

Extensions

JV_Ferreira January 20, 2026, 2:59pm 12

hey @Aaron_Schubert I work with Derrick from this thread URGENT: Shopify POS 10.19.0 api.cart.addLineItem(variantId) has stopped working for newly-created variantIds , did you have anyone take a look on it? It’s affecting all of our apps

Topic		Replies	Views
URGENT: Shopify POS 10.19.0 api.cart.addLineItem(variantId) has stopped working for newly-created variantIds Extensions pos-extensions	0	99	January 20, 2026
Bug in POS ext: relative URL fetch resolves incorrectly Extensions pos-extensions	3	72	July 18, 2025
After deploying, the fetch request from the POS UI Extensions to admin is not completed successfully Extensions pos-extensions	6	163	June 24, 2025
POS UI extension direct API access returns 401 unauthorized Extensions pos-extensions	23	337	February 16, 2026
POS UI Extension - Something went wrong Extensions pos-extensions	2	157	December 4, 2025

URGENT Shopify POS 10.19.0: Every HTTP request failing

Related topics