Config does not work with docusaurus about mdx-mermaid

[slorber]

FYI official Docusaurus support is coming with facebook/docusaurus#7490 (with proper dark theme support)

[JPeer264]

Hey I am facing the same issue, according to the patch you attached it seems that the config is always undefined, thus it will never enter the initialize where the dark theme is attached here.

A quickfix for your (or in general every setup) could be to have following in the docusaurus config [mdxMermaid.default, {}] (as seen here: https://stackblitz.com/edit/github-pwuwsv-kx6yjx?file=docusaurus.config.js).

But to fix the actual problem is to have either a default for the config or allow empty configs here in the useEffect as well. If @sjwall agrees in initializing mermaid without config then I can add a PR