Vue injected code blocks are not syntax highlighted

[Kurohyou]

I have a documentation site using some code blocks that are injected via vue (shown with quote syntax as code syntax presents showing markdown code marker):

### Example
```pug-vue
{{obj.example}}
```

### Output
```html-vue
{{obj.output}}
```

However, in the site, the syntax highlighting does not trigger for this appropriately:

I have other code blocks on the site that are hardcoded, and they work correctly:

```pug
+input({name:'my attribute',type:'text'})
+button({name:'my button',type:'action'})
```

Any idea what might be causing the failure of the syntax highlighting in the Vue injected code?

[brc-dd]

It's already documented that syntax highlighting doesn't work for those.

[Kurohyou]

Can you direct me to where that documentation is?

[brc-dd]

Exactly below where you saw -vue syntax: https://vitepress.dev/guide/using-vue#unescape-in-code-blocks