Warning.js: the opposite of noscript warnings
github.com
github.com
<script type="text/javascript" src="warning.js" charset="utf-8"></script>
versus: <script>alert('You forgot to disable JavaScript!')</script>
To be fair, the following would be sufficient, but for some strange reasons the project recommends the long version: <script src="warning.js"></script>> We are psyched to tell you, NOT on this site, here you don't need no stinking JavaScript!!!!1!
Which, if you simply include the script as directed in the "Installation & Usage" section, can't even be customized. This is hideously unprofessional, and I would immediately bounce off of any site that included it.
Or just don't include any JavaScript.