Can a GitHub wiki embed HTML

Question

I would like to create a wiki page that is a preamble (standard markdown) followed by an HTML/JS code listing followed by (in a frame I suppose) the page that this code would generate.

Is this possible?

PS The code is: http://pipad.org/MathBox/slides_simple.html

Answer 1

Github Wikis allow you to embed HTML, but not all HTML tags are supported.

To embed supported HTML:

1. Edit a wiki page.
2. Ensure the edit mode is on "Markdown".
3. Type the html directly into the main content area (there's no "code" view, like you often see in tools like Wordpress).

Which tags aren't supported?

I couldn't find documentation on this, but we have a few clues:

1. Github wikis are built on a software tool called Gollum. We can see which tags are supported in Gollum by default here in the Gollum docs. Github may customize these defaults for their use-case, but I'll bet it's pretty similar.
2. I went ahead and created a test wiki here with all the major visual html elements added to it (copied from Poor Man's Styleguide). It looks like the main tags that don't display are iframe, video, audio, and all of the various form inputs (textarea, input, select, etc).