title: Disable service worker in <Iframe>
body: <p>I need to disable service workers in <code>&lt;iframe&gt;</code></p>
  <p>I build offline PWAs for clients and have a number of demo PWAs running for my potential clients to test on their devices. I also wish to put these PWAs on my website in iframes, but when I do this, the viewer receives a browser notification stating that the app is installed on their device. This causes some alarm because the viewer might not be expecting this as they click through my website. I want to display the apps in an iframe without service worker activation, and with links inviting them to open the app in a new tab which they can then get the full PWA experience if they wish.</p>
  <p>Thanks.</p>