SageMath 8.8 with Jupyter shows 404 errors in terminal log

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Richard_L

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Aug 21, 2019, 5:51:21 PM8/21/19

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Since converting all my old noteboks over to Jupyter, and making pretty printing my default, I have seen 404 errors in the console log. These look something like:

404 GET /nbextensions/mathjax/fonts/HTML-CSS/TeX/otf/MathJax_AMS-Regular.otf (127.0.0.1) 2.94ms referer=http://localhost:8888/notebooks/[my_notebook_name].ipynb

The directory "/nbextensions/mathjax/" is a softlink to "~/sage-8.8/local/share/mathjax". As installed, there is no sub-directory "otf/" in the chain (spelled out in full)
"~/sage-8.8/local/share/jupyter/nbextensions/mathjax/fonts/HTML-CSS/TeX/".

A workaround is to create the missing directory and populate it with the missing font from GitHub [https://github.com/mathjax/MathJax/tree/master/fonts/HTML-CSS/TeX/otf]. The companion sub-folder "/woff/" is well populated, but for whatever reason, my notebooks seem to require .otf files.

FYI, the OS is openSUSE Leap 15.1, and I pulled Jupyter (ipynb) from the distro repositories.