title: Apps Link not working in facebook and safari
body: <p>I try to implement App Link in my IOS project. I've setup URL Schemes, and tested by typing <code>testApps://</code> into mobile safari. Open apps dialog is prompt. </p>
  
  <p>Im also setup a html file, access by public domain, <code>www.testSite.com/testApps.html</code> and include basic meta tag recommend by most Apps Link tutorial website. The file is shown as below:</p>
  
  <pre><code>&lt;html&gt;
      &lt;head&gt;
         &lt;meta property="al:ios:url" content="testApps://default" /&gt;
         &lt;meta property="al:ios:app_name" content="testApps" /&gt;
      &lt;/head&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>However, safari do not prompt to open Apps when i key in the URL.</p>
  
  <p>I also setup facebook apps setting, FB_test_Apps, set URL Scheme Suffix to be <code>testApps</code>, turn on <strong>Single sign on</strong> and <strong>Deep Linking</strong>. </p>
  
  <p>I share <strong>www.testSite.com/testApps.html</strong> in facebook, and also from apps which register under facebook apps <strong>FB_test_Apps</strong> (which it will show as "Via FB_test_Apps" under the post).</p>
  
  <p>When i click on this two post, Facebook will load it in facebook's webview. However it do not prompt to open my apps as well. </p>
  
  <p>Is there anything i've missed out?</p>
  
  <p><strong>Update</strong></p>
  
  <p>I found out this issue only happen in IOS9. iOS 8 able to work well.</p>
  
  <p>Regard
  Steven</p>