title: Android: video in webview freezes when running javascript via loadUrl
body: <p>I have an app which plays adaptive streaming video in a webview.  The issue is when trying to inject javascript, the video freezes.</p>
  
  <p>HTML:</p>
  
  <pre><code>&lt;video src="http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8" autoplay="autoplay" controls="controls" height="720" width="1280" /&gt;
  </code></pre>
  
  <p>Android:</p>
  
  <pre><code>webView.loadUrl("javascript:alert('Hello World!');");
  </code></pre>