title: Best way to block images in email rendered in browser?
body: <p>I've created a simple web email client.</p>
  
  <p>I want to "block" (i.e. not show) images whose protocol is http (vs https) because my site is served over ssl and I don't want insecure content warnings.</p>
  
  <p>What's the best way to go about this? Should I traverse the email dom and set the image href to "" (ie. empty string)?</p>
  
  <p>Is there a better way?</p>
  
  <p>I should note that this is a temporary measure. In the future I will set up an image proxy/cache system similar to gmail's.</p>