MathJax-node | repository | Runtime Evironment library

MathJax and Node newbie is getting undefined output when trying to generate svg using the slightly modified sample from here https://github.com/mathjax/MathJax-node

I want to load Mathjax once when the app is started and after that it should behave like the script-tag on a website and "translate" any MathML, TeX or ASCIImath "text" into human-readable content.

I tried mathjax-electron and mathjax-node but I couldn't get it working at all. Can someone give an example on how to implement it?

I used the readme.md example for mathjax-electron:

I am getting different behavior between mathjax on a webpage and mathjax-node. When I load it on the webpage I get the correct output that I am looking for. For example I have a line = $_{a} ^{x} A $ where I want the superscript and subscript above and below each other. It works fine if I convert it on the webpage however when I try to run it through mathjax-node I get what would look like this _{ax}A. Here is everything related to mathjax in my code:

I am writing an web app that saves html to onenote. In order to save math formulas, I plan to convert math formulas to svg by MathJax.js and then convert svg to png, because the html/css supported in onenote api is limited.

But it seems the svg generated by MathJax.js in browser is not a valid svg. I tested it with a simple math formula: $$a^2 + b^2 = c^2$$ (demo code) and copy the svg to jsfiddle and it displays nothing.

Then I tried to write a MathJax-node demo and copy the svg to jsfiddle again, it looks good. Here is my demo code, it's almost the same as the GitHub repo demo:

I try to use "useFontCache: false" in MathJax-node. Here is my example code:

My node script imports an XHTML document, and exports it in ebook formats using Calibre's ebook-convert utility. All of that works fine.

Some of my source documents contain MathML markup in addition to other XHTML content. I'm trying to use MathJax-node along with mathjax-node-svg2png to replace the MathML with images.

Here's some of my dumb code:

Trying to convert simple inline equation into SVG isn't working and stops execution at the first occurrence of $.

Inline equation: