KaTeX Support for Bookstack

custom_html_head_content.html

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/katex.min.css" integrity="sha384-AfEj0r4/OFrOo5t7NnNe46zW/tFgW6x/bCJG8FqQCEo3+Aro6EYUG4+cU+KJWu/X" crossorigin="anonymous">
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/katex.min.js" integrity="sha384-g7c+Jr9ZivxKLnZTDUhnkOnsh30B4H0rpLUpJ4jAIKs4fnJI+sEnkvrMWph2EDg4" crossorigin="anonymous"></script>
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/contrib/auto-render.min.js" integrity="sha384-mll67QQFJfxn0IYznZYonOWZ644AWYC+Pt2cHqMaRhXVrursRwvLnLaebdGIlYNa" crossorigin="anonymous"></script>
<script>

function _katex_render(elem) {
    renderMathInElement(
          elem,
          {
              delimiters: [
                  {left: "$$", right: "$$", display: true},
                  {left: "\\[", right: "\\]", display: true},
                  {left: "$", right: "$", display: false},
                  {left: "\\(", right: "\\)", display: false}
              ]
          }
      );
}

    document.addEventListener("DOMContentLoaded", function() {
_katex_render(document.body);
_katex_render(window.frames[0].document.body);

x = document.getElementById("markdown-editor");
x.onkeydown = () => {setTimeout(() => {_katex_render(window.frames[0].document.body);}, 0);};


    });
</script>