Very cool, thanks @krlaframboise!
I did something for myself locally (saved page and jQuery magic 
) and was a bit afraid to share because it had web.archive copyright notices all over the HTML. While I was happy to keep it locally, I wanted to share that page and your permanent link is going to be more useful than anything else we have. Nice work on the HTMLPreview — I had no idea GitHub offered a web server in essence. Wish it could host PHP code for me