title: PWA - Forcing orientation to landscape not working
body: <p>We have a PWA on an Ipad where the manifest file specificy indicates it should be run on landscape mode, however I can still rotate the screen on the app.</p>
  
  <p>Here is my <code>manifest</code> file</p>
  
  <pre><code>  "name": "App",
    "short_name": "App",
    "theme_color": "rgba(33,150,243,0)",
    "background_color": "rgba(33,150,243,0)",
    "display": "standalone",
    "orientation": "landscape",
    "Scope": "/",
    "start_url": "/",
    "prefer_related_application" : false,
    "icons": [
      {
        "src": "images/icons/icon-72x72.png",
        "sizes": "72x72",
        "type": "image/png"
      }
    ],
    "splash_pages": null
  }
  </code></pre>
  
  <p>As you can see <code>"orientation": "landscape",</code> is set, but it is not behaving that way. Any idea how to force it in a PWA?</p>