mathml output usage in browser

TeXZilla provides a method to create a mathml XML node from a latex string that can be called with const mathmlNode = TeXZilla.toMathML(latex).

As I was switching to MathLive for math editing, I was trying to see if I could also use MathLive to convert the equations to MathML and replace TexZilla.

In order to get the mathmlNode, I did this:

const domParser = new DomParser()
const mathmlNode = domParser.parseFromString(
            `<math xmlns="http://www.w3.org/1998/Math/MathML"><semantics>${
                MathLive.latexToMathML(latex)
            }</semantics></math>`,
            "application/xml"
        ).documentElement

This worked to a certain degree. Unfortunately it stumbles on certain mathml character entities, such as ⁢ or π. The DOM parser returns errors like “Entity ‘pi’ not defined”.

I then compared the output that comes out of TexZilla and MathLive and I noticed that TexZilla uses the standard unicode characters instead of the character entities. Is there a reason why MathLive is producing this kind of output and is there a way to create a node that the browser can read without throwing errors?

[arnog]

That module is going to get moved out of the core MathLive project, but it will still be around, so it’s something still worth addressing. I’ll look at it.

[arnog]

I can’t reproduce it. Could you write up a new issue with a code sample showing what you see vs. what you expect?