title: Safari 5.1 can NOT play HTTP Live Streaming (m3u8 file)
body: <p>This is my html file, it can play at Safari 5.0.5 (Mac OS X 10.6.8), but when I update the Safari to version 5.1, it can NOT play, can anyone tell me why, and how to solve it in Safari 5.1? Thanks.</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt; 
    &lt;title&gt;HTTP Live Streaming&lt;/title&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  &lt;video controls src="http://mysite/index.m3u8"&gt;
  &lt;/video&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p><strong>Updated:</strong> I found the solution! When I set in the System Preference > Network > Advanced > proxies > Automatic Proxy Configuration with the proxy I use, I found the HTTP Live Streaming can NOT play, when I remove proxy, it can play now! How does this happen? Why it play well in Safari 5.0.5?</p>