title: Google Chrome Extension - Accessing The DOM
body: <p>I have been searching around the web to find out how to access the current tabs DOM to extract information out of a page from the background.html.  So far I have had no luck, or at least nothing I could get to work properly.</p>
  
  <p>To state the problem simply.  I would like to get src of a iFrame on the page.  Any Suggestions?</p>