This shows just how powerful JavaScript can be --- without it, the site shows nothing.
...which is not entirely correct, since your user agent, request headers, and IP are still visible. There's plenty of other sites which will show you those without requiring any client-side scripting. Here's one just from a quick Google search:
...which is not entirely correct, since your user agent, request headers, and IP are still visible. There's plenty of other sites which will show you those without requiring any client-side scripting. Here's one just from a quick Google search:
http://www.xhaus.com/headers
(Interestingly, you can see GoogleBot's IP and request headers if you view Google's cached version of the page.)