silverwind b55a31eb6a Fix mermaid diagram height when initially hidden (#32457) ...

In a hidden iframe, `document.body.clientHeight` is not reliable. Use
`IntersectionObserver` to detect the visibility change and update the
height there.

Fixes: https://github.com/go-gitea/gitea/issues/32392

<img width="885" alt="image"
src="https://github.com/user-attachments/assets/a95ef6aa-27e7-443f-9d06-400ef27919ae">

2024-11-09 20:03:55 +02:00

3.1 KiB

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