Theme Compatibility & Advanced
Theme app extension overview
How the cart drawer's theme app extension intercepts ATC clicks.
This article is a draft and may be incomplete or change before publishing.
The cart drawer is delivered through a Shopify Theme App Extension.
How it works
Once enabled in your theme, the extension listens for add-to-cart clicks across the storefront and intercepts them. Instead of opening the default Shopify cart page, it opens the Oxify cart drawer.
Why theme app extensions
- No theme code edits — Install with one toggle, no Liquid changes.
- Survives theme updates — When you update or switch themes, the extension can be re-enabled with one toggle.
- Sandbox — Doesn't risk breaking other parts of your theme.
Per-theme
The extension is enabled per theme, so you can run it on production while your dev theme stays untouched (or vice versa).
Compatibility
Works with all Shopify themes that support theme app extensions (Online Store 2.0 themes — most modern themes).