Drop-in polyfill that makes Shopify's official Standard Storefront Events fire on themes that don't yet dispatch them natively. Intercepts /cart/(add|change|update|clear).js and dispatches shopify:cart:lines-update / note-update / discount-update / error using the platform-hosted event classes.
polyfill storefront shopify cart shopify-theme shopify-app theme-app-extension standard-events retenka
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Updated
Jun 26, 2026 - TypeScript