title: Removing iframe tag from feed output
body: <p>I need to remove an iframe tag that is causing my feed not to work. Here is the url of the validator <a href="http://validator.w3.org/feed/check.cgi?url=http://www.naturalnigerian.com/feed/" rel="nofollow">VALIDATOR</a>. The url of the feed is <a href="http://naturalnigerian.com/feed" rel="nofollow">Natural Nigerian Feed</a>. Please could someone tell me what to do. It's been very frustrating. Here is the code I have written to handle it but it is not working
  <code><pre>function rss_noiframe($content) {
        // filter out iframe here
      $content =  preg_replace( '/&lt;iframe(.*)/iframe&gt;/is', '', $content );
      return $content;
  }
  add_filter('the_excerpt_rss', 'rss_noiframe');
  add_filter('the_content_feed', 'rss_noiframe');
  add_filter('the_content_rss', 'rss_noiframe'); </pre></code>
  I put this code inside the template's function.php but to no avail</p>