title: JQMigrate to jQuery 1.9, how to find the offending line?
body: <p>I am migrating to jQuery 1.9.1, and use the <a href="http://blog.jquery.com/2013/02/04/jquery-1-9-1-released/" rel="nofollow">JQMigrate tool mentioned in the release notes</a>.</p>
  
  <p>I receive the following warning:</p>
  
  <pre><code>JQMIGRATE: $(html) HTML strings must start with '&lt;' character
  </code></pre>
  
  <p>The <a href="https://github.com/jquery/jquery-migrate/blob/master/warnings.md#jqmigrate-html-html-strings-must-start-with--character" rel="nofollow">explanation by the jQuery folks is quite clear</a>, <strong>but how to find the offending line?</strong></p>
  
  <p>The problem seems to be hidden somewhere in a 3rd party lib (<a href="http://mediaelementjs.com/" rel="nofollow">mediaelementjs</a>) or in the usage of it. I found this by commenting out calls. But there is quite much going on and I am stuck.</p>
  
  <hr>
  
  <p><strong>UPDATE:</strong> With the help of Kevin B I found the offending line, it was indeed within mediaelementJS. I the <code>mediaelement-and-player.js</code> it was line #3176 which was (note the outer whitespaces)</p>
  
  <pre><code>timeAndDurationSeparator: ' &lt;span&gt; | &lt;/span&gt; '
  </code></pre>
  
  <p>and is now</p>
  
  <pre><code>timeAndDurationSeparator: '&lt;span&gt; | &lt;/span&gt;'
  </code></pre>
  
  <p>which works flawlessly now.</p>
  
  <p>In case anyone runs into the same issue, here is the modified file:</p>
  
  <ul>
  <li>uncompressed
  <a href="https://quirli.svn.codeplex.com/svn/webroot/mediaelement/mediaelement-and-player.js" rel="nofollow">https://quirli.svn.codeplex.com/svn/webroot/mediaelement/mediaelement-and-player.js</a></li>
  <li>minified version
  <a href="https://quirli.svn.codeplex.com/svn/webroot/mediaelement/mediaelement-and-player.min.js" rel="nofollow">https://quirli.svn.codeplex.com/svn/webroot/mediaelement/mediaelement-and-player.min.js</a></li>
  </ul>
  
  <p>I will notify the original author, <a href="http://j.hn/" rel="nofollow">John Dyer</a> about this.</p>