title: How to trigger a function when iframe src change?
body: <p>i have iframe with src like <code>http://remote-domain.com/</code>, and when ever the src is get changed i need to trigger a function like <code>iframeSrcChanged()</code></p>
  
  <pre><code>&lt;iframe id="iframe" src="http://remote-domain.com/" frameborder="0" width="100%" height="100%" &gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>and when user click about-us inside iframe, the iframe src get changed into</p>
  
  <pre><code>&lt;iframe id="iframe" src="http://remote-domain.com/about-us.html" frameborder="0" width="100%" height="100%" &gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>so this time i need to trigger <code>iframeSrcChanged()</code> function.</p>
  
  <p>Please help me to trigger out this issue.</p>