Mozilla used to use an excellent little tool called X-Ray Goggles that let you modify the code and view behind any web page. Regrettably, they shut it down a number of years earlier and ever since Ive been advising that individuals simply
use Chromes examine tool to view the code behind a webpage. I even consisted of that in
my weekly newsletter this week. This week I found that
Mouse.org offers its own
X-Ray Goggles tool for modifying the code and viewing behind a page..

Mouse.orgs X-Ray Goggles tool lets you see the code behind any web page and modification that code to display anything that you want in location of the original text and images. After you have made the modifications you can publish a local copy of the web page. In this brief video I offer a demonstration of how Mouse.orgs X-Ray Goggles tool works..

Applications for Education.
Mouse.orgs X-Ray Goggles offers a great way for trainees to see how the code of a webpage works.

As I pointed out in the video, you could use X-Ray Goggles to change a post on the internet to make it a satire story. Then print the page and give it to your students to attempt to recognize the satire aspects of the story.