Type '"html"' is not assignable to type 'Language'

[dgknca]

Why it's not accepting 'html'? But it seems to be working.

[jonrutter]

So the direct reason for the error is that 'html' isn't included in the Language type in the type definitions. And the project actually doesn't include html in its supported languages either. But you're right, it does correctly parse the html.

From what I can gather, looking at the generated prism file, it seems to just be aliasing the markup language as html: prism.languages.html = prism.languages.markup;. So in other words if you pass <Highlight language="html" />, prism will parse it as markup, which is one of the supported languages.

You could probably safely ignore the error, since the code's actually working. Or you could silence the error by using markup instead of html.

It seems to me like it might be a good idea to update the Languages type to include html, since <Highlight /> does correctly parse html. There are also some other languages in the prism file that aren't included in the type defs too, which might also be worth adding.