Today I noticed that some of the maths in a draft post (which happened to be in LaTeX) rendered correctly in preview. When I introduced a syntax error in the maths, preview failed with “KaTeX parse error”. This led me to the KaTeX project and the markdown-it-katex plugin. With a bit of debugging help (from vrugtehagel on the eleventy discord instance), it turned out I needed to do a couple of things to get the plugin working in eleventy: Override the dependency from markdown-it-katex to k...
