SVG and mathML

[jimmyhchan]

Parsing stuff inside of SVG is silly

https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign

https://html.spec.whatwg.org/multipage/syntax.html#adjust-svg-attributes

[smfoote]

Can you add some tests to html.js that describe what the expected behavior is?

[jimmyhchan]

svg accepts a bunch of xml stuff (e.g. CDATA, scripts) not sure what is desirable here.

[smfoote]

I don't know if this will fix all of the issues, but #40 gets SVG at least reasonably working. I don't know what would happen when you throw scripts and CDATA into the mix, but I'm hopeful that creating and appending elements will allow the browser to handle the tricky stuff.

[smfoote]

I'm going to close this for now. If more issues with Math or SVG come up, we can open more specific issues.