### Bug description

As stated in the title, `code-fold` works for other code chunks but not for `mermaid`.

````md
---
title: "Mermaid code-fold"
format: html
---

```{mermaid}
%%| echo: true
%%| code-fold: true
%%| code-summary: "Show code"
 
flowchart LR
    id1{{This is the text in the box}}
```
````

Rendered with VS Code 1.75.1
Extension version 1.67.0
Operating System: Manjaro Linux
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 5.15.93-1-MANJARO (64-bit)
Graphics Platform: X11

### Checklist

- [X] Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] Please [format your issue](https://quarto.org/bug-reports.html#formatting-make-githubs-markdown-work-for-us) so it is easier for us to read the bug report.
- [X] Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] Please document the operating system you're running. If on Linux, please provide the specific distribution.
cscheid
2023-02-18T20:31:55Z
jakub-jedrusiak
bug mermaid
v1.3
closed
code-fold doesn't work for mermaid code
https://github.com/quarto-dev/quarto-cli/issues/4423