Check List

• I have already read Docs page & Troubleshooting page.
• I have already searched existing issues and they are not help to me.
• I examined error or warning messages and it's difficult to solve.
• I am using the latest version of Hexo. (run hexo version to check)
• My Node.js is matched the required version.

Expected behavior

now
<h2 id="%20[square]">%20[square]</h2>
generate
<a class="toc-link" href="#%20%5Bsquare%5D"></a>

Actual behavior

the anchor is invalid, it should be
<a class="toc-link" href="#%2520%5Bsquare%5D"></a>

I want to know if

How to reproduce?

/

Is the problem still there under Safe mode?

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Your Node.js & npm version

Your Hexo and Plugin version

Your package.json

Your site's _config.yml (Optional)

Others

No response