This repo shows the concept of using microsites to pre-warm the cache of a full Progressive Web App (PWA) using regular HTML and AMP HTML.
Related repo: https://github.com/googlechromelabs/affilicats/.
Note that for the AMP sample to work, the AMP microsite needs to be on the same origin as the PWA, else the service worker installation process will be stopped by the current AMP logic (related issue) with the error message below:
data-iframe-src (https://googlechromelabs.github.io) should be a URL on the same origin as the source
(https://tomayac.github.io) or canonical URL (https://tomayac.github.io) of the AMP-document.
Uncaught (in promise) Resource: failed to build: amp-install-serviceworker#1: data-iframe-src
(https://googlechromelabs.github.io) should be a URL on the same origin as the source
(https://tomayac.github.io) or canonical URL (https://tomayac.github.io) of the AMP-document.
