title: How to debug service worker/pwa in ios11.3 mobile device?
body: <p>My environment:</p>
  
  <pre><code>* Safari Technology Preview Release 51 (Safari 11.2, WebKit 13606.1.6)
  * iPad with ios11.3 beta6(15e5216a)
  * mac os 10.13.3
  </code></pre>
  
  <p>I can debug service worker in mac desktop.</p>
  
  <p>I can debug service worker in Android mobile device.</p>
  
  <p>But I could not found out how to debug service worker in ios11.3 mobile device?</p>