title: "Add to Homescreen" Banner in Rails PWA
body: <p>I've made a small PWA in RoR; following and I followed <a href="https://developers.google.com/web/fundamentals/engage-and-retain/app-install-banners/" rel="nofollow noreferrer">Google's guide</a> on having "Add to Homescreen" banners. Everything in devtools is fine: the service worker is registered, the manifest.json is found, the "Add to Homescreen" link is displayed and runs in the tool drawer. </p>
  
  <p>I even installed Lighthouse like they said and ran the report; it says everything should work. However, I have yet to see the banner (yes, it isn't already on my homescreen; yes, I visited at least five minutes apart).</p>
  
  <p>Does anyone have an idea on what the threshold is WRT users activity to make the banner appear?</p>
  
  <p>(ps. does anyone want to try it out <a href="https://diogn.es" rel="nofollow noreferrer">here</a>?)</p>