Hi team,
We have a custom POS UI Extension that generally loads without any issues during the week. However, we’ve noticed that, typically on weekends, there are occasional cases where the extension remains stuck on “Loading…” indefinitely.
When this occurs, none of the extension content is rendered. Because the extension never appears to initialize, my assumption is that the issue may not be within the extension code itself. I also considered a connectivity problem, but the fact that the Shopify POS app continues to function normally during these incidents makes that seem less likely.
Shopify Support suggested enabling runs_offline = true so that the extension can attempt to load regardless of network connectivity. While that could help, the extension still relies on a network request after mounting, so we would need to handle any communication failures separately. One potential benefit of this approach is that each time the extension attempts to mount, it would also retry the network request, which seems preferable to requiring the user to completely restart the POS app.
Has anyone encountered a similar issue with POS UI Extensions? If so, what approach did you take to troubleshoot it? Is there a recommended way to trigger or force the extension to reload when it gets stuck in the loading state?
Thank you in advance for any insights.