Data uris blocked in new firefox: fix 'this form' button.

[daurnimator]

See https://news.ycombinator.com/item?id=15821896

[zzo38]

A easy way to fix it, and which would make sense, would be to just include the HTML form in the same document, after the explanation of everything else. That way you do not need to add another file.

[strugee]

If you drag it to your bookmarks bar then it works OK.