title: Dealing with HTTP content in HTTPS pages
body: <p>We have a site which is accessed entirely over HTTPS, but sometimes display <strong>external content</strong> which is HTTP (images from RSS feeds, mainly).  The vast majority of our users are also stuck on IE6.</p>
  
  <p>I would ideally like to do both of the following</p>
  
  <ul>
  <li>Prevent the IE warning message about insecure content (so that I can show a less intrusive one, e.g. by replacing the images with a default icon as below)</li>
  <li>Present something useful to users in place of the images that they can't otherwise see; if there was some JS I could run to figure out which images haven't been loaded and replace them with an image of ours instead that would be great.</li>
  </ul>
  
  <p>I suspect that the first aim is simply not possible, but the second may be sufficient.</p>
  
  <p>A worst case scenario is that I parse the RSS feeds when we import them, grab the images store them locally so that the users can access them that way, but it seems like a lot of pain for reasonably little gain.</p>