Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io.
• I have read the console error message carefully (if applicable).

Description

On macOS, the VoiceOver screen reader reads all headings twice, which is very annoying.

Here's a recording using Safari + VoiceOver:

And here's a recording using Chrome + VoiceOver:

Reproducible demo

No response

Steps to reproduce

1. Go to https://docusaurus.io/docs
2. Activate VoiceOver with Cmd + F5
3. Press <leader> + A (usually Ctrl + Alt + A)

Expected behavior

I'd expect each heading to only be read once.

Actual behavior

Each heading is read twice.

Your environment

Official Docusaurus website.

Self-service

• I'd be willing to fix this bug myself.