How to run mermaid without importing it as a module?

[mrueg]

I'm using mermaid embedded in https://github.com/dreampuf/mermaid.go which uses chromedp to create svg / png files for rendered mermaid diagrams.
The source is embedded and evaluated in https://github.com/dreampuf/mermaid.go/blob/main/mermaid.go#L39
The diagram is rendered in https://github.com/dreampuf/mermaid.go/blob/main/mermaid.go#L59

This works well with mermaid@10, unfortunately fails to work with mermaid@11. I tried also moving to the esm module but as I don't have a filesystem but it's all in a single binary, I can't import mermaid from there.

Is there a way to run mermaid similar to what we did with the minimized common js file before?