Html validation on server requires jsdom?

Do prosemirror need to run inside jsdom to be able to parse and validate some html (or some json) against a schema spec ?

ProseMirror does not validate HTML (or JSON), so I don’t understand the question. If you mean parse, yes, if you want to parse HTML on Node, you’ll have to load jsdom or some other sufficiently complete DOM implementation.

yes i meant something like that, thanks for the clarification.