title: Android webview html5 video autoplay not working on android 4.0.3
body: <p>I have developed an application where the user can set videos on a web page:
  - They can specify a Youtube URL
  OR
  - They can upload a video</p>
  
  <p>Depending on which option the user chooses i render a video page like this :
  If a video is from youtube:</p>
  
  <pre><code>&lt;iframe type="text/html" width="640" height="385" src="http://www.youtube.com/embed/YOUTUBEID?autoplay=1&amp;loop=1&amp;autohide=1&amp;fs=0"  frameborder="0"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>If the video is being uploaded:</p>
  
  <pre><code>&lt;video id="video" style="cursor: pointer;" width="640" height="480"  autoplay controls loop&gt;
    &lt;source src="../video/Tareas_Diarias_Resumen.mp4" type="video/mp4" /&gt;
  &lt;/video&gt;
  </code></pre>
  
  <p>OK. All this works perfect on Google Chrome, but the fact is that the video is going to be watched on 16 Samsung GT-P5100 Android 4.03 Tablets.</p>
  
  <p>We created an Android application which embeds an webView like that:</p>
  
  <pre><code>WebView engine = (WebView) findViewById(R.id.web_engine);
  engine.setWebChromeClient(new WebChromeClient());
  engine.getSettings().setPluginsEnabled(true);
  engine.getSettings().setPluginState(PluginState.ON);
  engine.getSettings().setJavaScriptEnabled(true);
  engine.getSettings().setAllowFileAccess(true);
  engine.loadUrl(miUrl);
  </code></pre>
  
  <p>And here I have two issues:
  1- Youtube video. It works ok, I can see the video but with no autoplay, and we want it to work with autoplay. Any solution?
  2- The uploaded video does not work, I can see the player but no video.</p>
  
  <p>The video was converted with handbrake, choosing iphone &amp; ipod-touch preset and "Web Optimized" option.</p>
  
  <p>Any help or clue?
  Thanks in advance</p>