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In Latex pdf export (C-c C-e l o) $m$ renders correctly as italics m but in HTML export (C-c C-e h o) it renders as Roman m.

Reverse slash Latex formulas like $\mathbb{N}$ render fine in both Latex and HTML.

How can I fix this so that $m$ renders as m in HTML too?

UPDATE

This appears to be a Mac OSX Chrome issue. Safari renders the page correctly. I signed out of my Chrome account but the same issue remained. In this video you can see that when I refresh the page Chrome briefly renders the page correctly but then it reverts back to the Roman font styling (The video is in slow motion).

I use this header for both exports:

#+SETUPFILE: ~/.emacs.d/org-templates/level-2.org
#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="http://cavendish-deneyi.com/css/worg-classic-new.css"/>

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    $m +0 = m$ renders the m as italic in both PDF and HTML export here. Are you using MathJax in your HTML export?
    – NickD
    Commented Dec 11, 2023 at 16:37
  • @NickD I'm not sure. Some sources say mathjax is default in org. This page docs.mathjax.org/en/latest/web/start.html gives a script to add to <head>. I did that but nothing changed. How do I activate mathjax?
    – zeynel
    Commented Dec 11, 2023 at 16:53
  • @NickD I found this answer emacs.stackexchange.com/a/66416/36380 where they tell how to open mathjax options. I did that but I was scared to change anything. Nothing made sense.
    – zeynel
    Commented Dec 11, 2023 at 17:11
  • @NickD "By default, Org loads MathJax from jsDelivr," orgmode.org/manual/Math-formatting-in-HTML-export.html
    – zeynel
    Commented Dec 11, 2023 at 17:16
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    So check the HTML file that is produced and see if it contains the following: <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"> </script>. You might also try \(m+0 = m\) instead of the dollar signs.
    – NickD
    Commented Dec 11, 2023 at 18:49

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