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Description
Issue Summary
Typesetting \[a_{\sum_b c}\] produces an error Uncaught (in promise) TypeError: o is null.
Steps to Reproduce:
Compiling the following LaTeX file
\documentclass{article}
\begin{document}
\[a_{\sum_b c}\]
\end{document}
with make4ht test.tex "mathjax,mathml" produces the following html file
<!DOCTYPE html>
<html lang='en-US' xml:lang='en-US'>
<head><title></title>
<meta charset='utf-8' />
<meta content='TeX4ht (https://tug.org/tex4ht/)' name='generator' />
<meta content='width=device-width,initial-scale=1' name='viewport' />
<link href='test.css' rel='stylesheet' type='text/css' />
<meta content='test.tex' name='src' />
<script async='async' id='MathJax-script' src='https://cdn.jsdelivr.net/npm/mathjax@3/es5/mml-chtml.js' type='text/javascript'></script>
</head><body>
<div class='par-math-display'><!-- l. 5 --><math display='block' xmlns='http://www.w3.org/1998/Math/MathML'><mrow>
<msub><mrow><mi>a</mi></mrow><mrow><munder class='msub'><mrow><mtext>∑</mtext></mrow><mrow>
<mi>b</mi></mrow></munder><mi>c</mi></mrow></msub>
</mrow></math></div>
<!-- l. 5 --><p class='nopar'>
</p>
</body>
</html>
Note that removing any of the symbols produces a correct output.
Technical details:
- MathJax Version: 3.2
- Client OS: Kubuntu 24.04
- Browser: Firefox 133.0.3
I am using the following MathJax configuration: ?
MathJax = { ?
...
};and loading MathJax via
<script async='async' id='MathJax-script' src='https://cdn.jsdelivr.net/npm/mathjax@3/es5/mml-chtml.js' type='text/javascript'></script> Supporting information:
- Please supply a link to a (live) minimal example page, when possible.
- If your issue is with the display of the mathematics produced by MathJax, include a screen snapshot that illustrates the problem, when possible.
- Check your browser console window for any error messages, and include them here.
- Include the MathJax configuration you are using, and the script tag that loads MathJax itself.