Share - Parsing of mermaid CodeBlock breaks on certain characters

[alvaroc1]

Example: https://share.unison-lang.org/@alvaroc1/p/code/latest/namespaces/public/mermaid/main/;/terms/brokenDoc

Character: ∘

The code produced by that Doc renders fine in the mermaid live editor.

[alvaroc1]

I just realized my diagram does actually get rendered, but below the page 😬

[hojberg]

This seems to be broken in Mermaid when using the sandbox version (which we prefer to use):

https://jsfiddle.net/s3817cjq/8/

[hojberg]

I deployed an improved error message and am tracking a ticket on Mermaid here: mermaid-js/mermaid#4050