How can I switch KaTeX output to MathML only instead of both MathML and HTML by default?

[li-zhenyu]

MathML is cool. But the default output is both MathML and HTML. What's more, it requires a css to avoid showing the equation twice, and this can cause some trouble in RSS readers. Given that MathML now has broad browser support and offers superior accessibility, I would like to configure KaTeX to output only mathml.

KaTeX supports both MathML and HTML. See output in https://katex.org/docs/options.html . Since in Docusaurus we use a plugin and docusaurus.config.js rather than use KaTeX directly, how to configure this output as mathml instead of htmlAndMathml?

[anntnzrb]

Configure rehype-katex with output: 'mathml' in your docusaurus.config.js:

import rehypeKatex from 'rehype-katex';

export default {
  presets: [
    [
      '@docusaurus/preset-classic',
      {
        docs: {
          rehypePlugins: [
            [rehypeKatex, {output: 'mathml'}],
          ],
        },
        blog: {
          rehypePlugins: [
            [rehypeKatex, {output: 'mathml'}],
          ],
        },
      },
    ],
  ],
};

The plugin passes options directly to KaTeX. See https://katex.org/docs/options.html for all available options.

[li-zhenyu]

Thanks!