I like the idea of the page relying as little as possible on my code (you have a better chance to trust a well known public CDN on HTTPS than some minified code inlined from an unknow github repo).

But I understand your point, plus it would be nice to have a page working completely offline. Will add the option to embed the needed library in the single file.

It definitely does not need jQuery :) The page was a POC, since it seems it might be useful to some I'll clean it up. Thanks for the feedback !