title: Installable Web Apps with the Web App Manifest in Chrome for Android not working
body: <p>Hello i'm getting this error:</p>
  
  <pre><code>Site cannot be installed: no matching service worker detected. You may need to reload the page, or check that the service worker for the current page also controls the start URL from the manifest
  </code></pre>
  
  <p>This is my manifest.json:</p>
  
  <pre><code>{
    "name": "SIMIC project",
    "short_name": "simic",
    "icons": [{
      "src": "images/simic-bn.png",
      "type": "image/png",
      "sizes": "32x32"
    },
    {
      "src": "images/simic-bn.png",
      "type": "image/png",
      "sizes": "144x144"
    }],
    "start_url": "/wta/",
    "display": "standalone",
    "background_color": "#ffffff",
    "theme_color": "#1e88e5"
  }
  </code></pre>
  
  <p>This is my url: "mydomain:8889/wta/" and this is my code structure:</p>
  
  <p>-mydomain</p>
  
  <p>---wta</p>
  
  <p>------css/</p>
  
  <p>------font/</p>
  
  <p>------images/</p>
  
  <p>------js/</p>
  
  <p>------index.html</p>
  
  <p>------manifest.json</p>
  
  <p>What am i missing? THX</p>