view-source-image.html

Enable keyboard shortcuts

<script>

  var url = document.location.href;

  var imageUrl = url.replace(/[/][^/]*$/, "/blue-circle-16x16.png");

  var viewSourceImageUrl = "view-source:" + imageUrl;

  var html = "<iframe src='#url#'></iframe>".replace(/#url#/, viewSourceImageUrl);

  document.write(html);

</script>