Serving service-worker.js and izooto.html from
/apps/izooto/ — a path that survives theme changes.
Open this app from the Shopify admin to get setup links.
/apps/izooto/. Shopify strips the
Service-Worker-Allowed header, so the worker's scope stays
/apps/izooto/ and this step is required.cdn.izooto.com script tags from
layout/theme.liquid, plus assets/service-worker.js and
assets/izooto.html, to avoid a double SDK load.