Cannot change link preview

[davidhcefx]

Is this a hackmd.io issue?

• [x] Yes, the bug happens on https://hackmd.io
• [ ] No. If it's a self-hosted CodiMD instance, please fire up the issue in the repo of CodiMD: https://github.com/hackmdio/codimd

Read our Official tutorial

It's on https://hackmd.io/c/tutorials/

或是中文版 https://hackmd.io/c/tutorials-tw/

What's the problem

• The document stated that link previews could be changed by setting the YAML metadata.
• However, it's not working.

Current behaviour

• Facebook Tool:

• LinkedIn Tool:

Provide steps to reproduce:

1. Go to https://hackmd.io/gTrV9LfuS0mD4onCY-5cFg?view
2. Try with Facebook tool or LinkedIn tool
3. Link previews not been set to our customized image.

Expected behaviour

Link preview been set to our customized image.

Environment

I use HackMD on:

Desktop

• OS: Windows 10
• Browser: Chrome
• Browser Version: 110.0

Additional context

Add any other context about the problem here.