Mathjax not working with singlehtml

[spaceChRiS]

Describe the bug

This is probably related to #9686.

When using the mathjax extension, math is working in the html output but not in the singlehtml output.

Manually adding the line

<script async="async" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>

which is missing in the singlehtml output but present in the html output makes math work well.

How to Reproduce

Run sphinx with mathjax extension on a documentation containing some math with the singlehtml target. The actual test case that was used uses markdown files and math is not present in the main rst file but in one of the later included files (in case that makes a difference, which may be the case reading #9686).

Environment Information

This is running in a linux CI environment. I can reproduce it locally with sphinx 7.0.1.

Sphinx extensions

myst_parser, sphinx_math_dollar, sphinx.ext.mathjax

Additional context

No response

[picnixz]

You can do the following trick in conf.py:

def setup(app):
    app.set_html_assets_policy('always')

[spaceChRiS]

This works for me, thank you very much!