A tags and figures are not handled correctly

I am trying to minify an HTML fragment with HTML inside an anchor tag. The minifier moves the content from inside the a tag to outside the a tag.

The command used for minifying:

npx html-minifier --keep-closing-slash --remove-comments --collapse-whitespace --minify-js --minify-css --decode-entities --no-html5 --process-conditional-comments --remove-redundant-attributes --remove-script-type-attributes --remove-style-link-type-attributes --use-short-doctype --trim-custom-fragments -o index.html.min index.html

Source file
https://github.com/humaknlght/ericperretsinfo/blob/master/src/art/index.html

<div class="artContent" contenteditable="false">
    <a href="/art/img/2.jpg">
        <figure>
            <img src="/art/img/2.jpg" width="552" height="795"/>
            <figcaption>Tetris</figcaption>
        </figure>
    </a>
    <a href="/art/img/3.jpg">
        <figure>
            <img src="/art/img/3.jpg" loading="lazy" width="552" height="795"/>
            <figcaption>Shapes</figcaption>
        </figure>
    </a>
    <a href="/art/img/4.jpg">
        <figure>
            <img src="/art/img/4.jpg" loading="lazy" width="552" height="807"/>
            <figcaption>Boxes and Lines</figcaption>
        </figure>
    </a>
    <a href="/art/img/6.jpg">
        <figure>
            <img src="/art/img/6.jpg" loading="lazy" width="552" height="781"/>
            <figcaption>Maze 1</figcaption>
        </figure>
    </a>
    <a href="/art/img/7.jpg">
        <figure>
            <img src="/art/img/7.jpg" loading="lazy" width="552" height="804"/>
            <figcaption>Maze 2</figcaption>
        </figure>
    </a>
    <a href="/art/img/8.jpg">
        <figure>
            <img src="/art/img/8.jpg" loading="lazy" width="552" height="803"/>
            <figcaption>Concentric Lines</figcaption>
        </figure>
    </a>
    <a href="/art/img/9.jpg">
        <figure>
            <img src="/art/img/9.jpg" loading="lazy" width="552" height="800"/>
            <figcaption>Lines</figcaption>
        </figure>
    </a>
    <a href="/art/img/10.jpg">
        <figure>
            <img src="/art/img/10.jpg" loading="lazy" width="552" height="808"/>
            <figcaption>Concentric Lines ontop of Tetris</figcaption>
        </figure>
    </a>
    <a href="/art/img/11.jpg">
        <figure>
            <img src="/art/img/11.jpg" loading="lazy" width="552" height="786"/>
            <figcaption>Triangles</figcaption>
        </figure>
    </a>
    <a href="/art/img/12.jpg">
        <figure>
            <img src="/art/img/12.jpg" loading="lazy" width="552" height="800"/>
            <figcaption>Concentric ERIC</figcaption>
        </figure>
    </a>
    <a href="/art/img/13.jpg">
        <figure>
            <img src="/art/img/13.jpg" loading="lazy" width="552" height="797"/>
            <figcaption>Boxes and Lines 2</figcaption>
        </figure>
    </a>
    <a href="/art/img/14.jpg">
        <figure>
            <img src="/art/img/14.jpg" loading="lazy" width="552" height="802"/>
            <figcaption>Concentric Lines 2</figcaption>
        </figure>
    </a>
    <a href="/art/img/15.jpg">
        <figure>
            <img src="/art/img/15.jpg" loading="lazy" width="552" height="795"/>
            <figcaption>L Shapes</figcaption>
        </figure>
    </a>
    <a href="/art/img/16.jpg">
        <figure>
            <img src="/art/img/16.jpg" loading="lazy" width="552" height="791"/>
            <figcaption>Boxes with Patterns</figcaption>
        </figure>
    </a>
    <a href="/art/img/17.jpg">
        <figure>
            <img src="/art/img/17.jpg" loading="lazy" width="552" height="792"/>
            <figcaption>Angles</figcaption>
        </figure>
    </a>
    <a href="/art/img/18.jpg">
        <figure>
            <img src="/art/img/18.jpg" loading="lazy" width="552" height="794"/>
            <figcaption>Triangles and Squares</figcaption>
        </figure>
    </a>
    <a href="/art/img/19.jpg">
        <figure>
            <img src="/art/img/19.jpg" loading="lazy" width="552" height="796"/>
            <figcaption>⊔, ⊓, ⊏, and ⊐</figcaption>
        </figure>
    </a>
    <a href="/art/img/20.jpg">
        <figure>
            <img src="/art/img/20.jpg" loading="lazy" width="552" height="802"/>
            <figcaption>Triangles and Diamonds</figcaption>
        </figure>
    </a>
    <a href="/art/img/21.jpg">
        <figure>
            <img src="/art/img/21.jpg" loading="lazy" width="552" height="793"/>
            <figcaption>Tetris Lines with a Box and Triangle Fissure.</figcaption>
        </figure>
    </a>
    <a href="/art/img/5.jpg">
        <figure>
            <img src="/art/img/5.jpg" loading="lazy" width="552" height="811"/>
            <figcaption>Triangles</figcaption>
        </figure>
    </a>
</div>

Actual Minified version

<div class="artContent" contenteditable="false"><a href="/art/img/2.jpg"></a><figure><img src="/art/img/2.jpg" width="552" height="795"/><figcaption>Tetris</figcaption></figure><a href="/art/img/3.jpg"></a><figure><img src="/art/img/3.jpg" loading="lazy" width="552" height="795"/><figcaption>Shapes</figcaption></figure><a href="/art/img/4.jpg"></a><figure><img src="/art/img/4.jpg" loading="lazy" width="552" height="807"/><figcaption>Boxes and Lines</figcaption></figure><a href="/art/img/6.jpg"></a><figure><img src="/art/img/6.jpg" loading="lazy" width="552" height="781"/><figcaption>Maze 1</figcaption></figure><a href="/art/img/7.jpg"></a><figure><img src="/art/img/7.jpg" loading="lazy" width="552" height="804"/><figcaption>Maze 2</figcaption></figure><a href="/art/img/8.jpg"></a><figure><img src="/art/img/8.jpg" loading="lazy" width="552" height="803"/><figcaption>Concentric Lines</figcaption></figure><a href="/art/img/9.jpg"></a><figure><img src="/art/img/9.jpg" loading="lazy" width="552" height="800"/><figcaption>Lines</figcaption></figure><a href="/art/img/10.jpg"></a><figure><img src="/art/img/10.jpg" loading="lazy" width="552" height="808"/><figcaption>Concentric Lines ontop of Tetris</figcaption></figure><a href="/art/img/11.jpg"></a><figure><img src="/art/img/11.jpg" loading="lazy" width="552" height="786"/><figcaption>Triangles</figcaption></figure><a href="/art/img/12.jpg"></a><figure><img src="/art/img/12.jpg" loading="lazy" width="552" height="800"/><figcaption>Concentric ERIC</figcaption></figure><a href="/art/img/13.jpg"></a><figure><img src="/art/img/13.jpg" loading="lazy" width="552" height="797"/><figcaption>Boxes and Lines 2</figcaption></figure><a href="/art/img/14.jpg"></a><figure><img src="/art/img/14.jpg" loading="lazy" width="552" height="802"/><figcaption>Concentric Lines 2</figcaption></figure><a href="/art/img/15.jpg"></a><figure><img src="/art/img/15.jpg" loading="lazy" width="552" height="795"/><figcaption>L Shapes</figcaption></figure><a href="/art/img/16.jpg"></a><figure><img src="/art/img/16.jpg" loading="lazy" width="552" height="791"/><figcaption>Boxes with Patterns</figcaption></figure><a href="/art/img/17.jpg"></a><figure><img src="/art/img/17.jpg" loading="lazy" width="552" height="792"/><figcaption>Angles</figcaption></figure><a href="/art/img/18.jpg"></a><figure><img src="/art/img/18.jpg" loading="lazy" width="552" height="794"/><figcaption>Triangles and Squares</figcaption></figure><a href="/art/img/19.jpg"></a><figure><img src="/art/img/19.jpg" loading="lazy" width="552" height="796"/><figcaption>⊔, ⊓, ⊏, and ⊐</figcaption></figure><a href="/art/img/20.jpg"></a><figure><img src="/art/img/20.jpg" loading="lazy" width="552" height="802"/><figcaption>Triangles and Diamonds</figcaption></figure><a href="/art/img/21.jpg"></a><figure><img src="/art/img/21.jpg" loading="lazy" width="552" height="793"/><figcaption>Tetris Lines with a Box and Triangle Fissure.</figcaption></figure><a href="/art/img/5.jpg"></a><figure><img src="/art/img/5.jpg" loading="lazy" width="552" height="811"/><figcaption>Triangles</figcaption></figure></div>

You can see that the a tags are empty, causing the HTML to be different.

Expected Minified version

<div class="artContent" contenteditable="false"><a href="/art/img/2.jpg"><figure><img src="/art/img/2.jpg" width="552" height="795"/><figcaption>Tetris</figcaption></figure></a><a href="/art/img/3.jpg"><figure><img src="/art/img/3.jpg" loading="lazy" width="552" height="795"/><figcaption>Shapes</figcaption></figure></a><a href="/art/img/4.jpg"><figure><img src="/art/img/4.jpg" loading="lazy" width="552" height="807"/><figcaption>Boxes and Lines</figcaption></figure></a><a href="/art/img/6.jpg"><figure><img src="/art/img/6.jpg" loading="lazy" width="552" height="781"/><figcaption>Maze 1</figcaption></figure></a><a href="/art/img/7.jpg"><figure><img src="/art/img/7.jpg" loading="lazy" width="552" height="804"/><figcaption>Maze 2</figcaption></figure></a><a href="/art/img/8.jpg"><figure><img src="/art/img/8.jpg" loading="lazy" width="552" height="803"/><figcaption>Concentric Lines</figcaption></figure></a><a href="/art/img/9.jpg"><figure><img src="/art/img/9.jpg" loading="lazy" width="552" height="800"/><figcaption>Lines</figcaption></figure></a><a href="/art/img/10.jpg"><figure><img src="/art/img/10.jpg" loading="lazy" width="552" height="808"/><figcaption>Concentric Lines ontop of Tetris</figcaption></figure></a><a href="/art/img/11.jpg"><figure><img src="/art/img/11.jpg" loading="lazy" width="552" height="786"/><figcaption>Triangles</figcaption></figure></a><a href="/art/img/12.jpg"><figure><img src="/art/img/12.jpg" loading="lazy" width="552" height="800"/><figcaption>Concentric ERIC</figcaption></figure></a><a href="/art/img/13.jpg"><figure><img src="/art/img/13.jpg" loading="lazy" width="552" height="797"/><figcaption>Boxes and Lines 2</figcaption></figure></a><a href="/art/img/14.jpg"><figure><img src="/art/img/14.jpg" loading="lazy" width="552" height="802"/><figcaption>Concentric Lines 2</figcaption></figure></a><a href="/art/img/15.jpg"><figure><img src="/art/img/15.jpg" loading="lazy" width="552" height="795"/><figcaption>L Shapes</figcaption></figure></a><a href="/art/img/16.jpg"><figure><img src="/art/img/16.jpg" loading="lazy" width="552" height="791"/><figcaption>Boxes with Patterns</figcaption></figure></a><a href="/art/img/17.jpg"><figure><img src="/art/img/17.jpg" loading="lazy" width="552" height="792"/><figcaption>Angles</figcaption></figure></a><a href="/art/img/18.jpg"><figure><img src="/art/img/18.jpg" loading="lazy" width="552" height="794"/><figcaption>Triangles and Squares</figcaption></figure></a><a href="/art/img/19.jpg"><figure><img src="/art/img/19.jpg" loading="lazy" width="552" height="796"/><figcaption>⊔, ⊓, ⊏, and ⊐</figcaption></figure></a><a href="/art/img/20.jpg"><figure><img src="/art/img/20.jpg" loading="lazy" width="552" height="802"/><figcaption>Triangles and Diamonds</figcaption></figure></a><a href="/art/img/21.jpg"><figure><img src="/art/img/21.jpg" loading="lazy" width="552" height="793"/><figcaption>Tetris Lines with a Box and Triangle Fissure.</figcaption></figure></a><a href="/art/img/5.jpg"><figure><img src="/art/img/5.jpg" loading="lazy" width="552" height="811"/><figcaption>Triangles</figcaption></figure></a></div>

I validated the HTML fragment using https://validator.w3.org/nu/ and the input is valid.

Start by reproducing the issue with the command in the report and the linked src/art/index.html input. Compare the minified output with the expected version, focusing on preserving each figure inside its surrounding anchor, then validate the corrected fragment with the W3C Nu HTML Checker.