title: Interval set through content script being cleared by webpage
body: <p>In my chrome extension, I have a setInterval in the content script which checks for changes in the webpage after every 3 seconds.</p>
  
  <pre><code>setInterval(detectChange, 3000)
  
  function detectChange(){
      ...
  }
  </code></pre>
  
  <p>This works perfectly well for all websites except one (<a href="http://www.rdio.com/" rel="nofollow">www.rdio.com</a>). The webpage scripts somehow clears the interval set through the content script.</p>
  
  <p>I thought of putting the setInterval in background script and sending a message to the content script at each interval. But that would require me to track all the tabs in which the content script is running, which does not seem like a good idea.</p>
  
  <p>Please let me know if there is a way around.</p>