It looks like there is a memory leak issue

[iccyuan]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)

Affected packages and versions

7.0.0

Link to runnable example

No response

Steps to reproduce

Render long text with typewriter effect

Expected behavior

Memory usage is normal

Actual behavior

Memory leak occurs after upgrading dependencies:
"react-dom": "^18.2.0",
"react-markdown": "^9.0.0",
"react-router-dom": "^6.15.0",
"rehype-highlight": "7.0.0",
"rehype-katex": "^7.0.0",
"remark-breaks": "^4.0.0",
"remark-gfm": "^4.0.0",
"remark-math": "^6.0.0",

No memory leak dependencies：
"react-dom": "^18.2.0",
"react-markdown": "^8.0.7",
"react-router-dom": "^6.14.1",
"rehype-highlight": "^6.0.0",
"rehype-katex": "^6.0.3",
"remark-breaks": "^3.0.2",
"remark-gfm": "^3.0.1",
"remark-math": "^5.1.1",

Runtime

No response

Package manager

No response

OS

No response

Build and bundle tools

No response

[ChristianMurphy]

See remarkjs/react-markdown#791 for traces and discussion.
This looks like an issue in highlight js rather than here.