MathJax doesn’t work in footnotes with Easy Footnotes plugin

> What has changed in the Simple Mathjax plugin that could have caused this issue?

v2 of this plugin defaults to MathJax v3 (instead of MathJax v2).

> Is there a possible fix?

On the one hand, you can downgrade to MathJax v2 by setting a custom URL in the plugin configuration.

On the other hand, you can update your code to typset the footnotes. I couldn’t spot where that happens but the page seems to have a renderMath() function which uses the MathJax v2 API

MathJax.Hub.Queue([“Typeset”,MathJax.Hub]);

The MathJax v3 for typesetting new content is

MathJax.typesetPromise()

See https://docs.mathjax.org/en/latest/advanced/typeset.html

As always, we can’t provide support related to MathJax itself — you can post to, e.g., the MathJax User Group for more help on the changes in MathJax v3.

Hi @pkra and thank you so much for your reply.

I had indeed made a custom function called renderMath() which starts the rendering of mathjax for a live preview window. I have now switched so this function doesn’t run MathJax.Hub.Queue(["Typeset",MathJax.Hub]); but instead MathJax.typesetPromise(), and this did indeed solve a similar issue with the preview window. Thank you very much for that.

It still didn’t solve the issue with the footnote hover-boxes, though. Math still isn’t rendered here (and I have tried removing all custom javascript to see if I had caused the issue myself, but with no change). It seems that the content of these footnote boxes is added to the page after the initial page-load rendering of mathjax has happened. Can you confirm this? Is this an issue I have to go back to the footnote-plugin support for?

Best regards
Steeven

From another quick look, it seems to be a timing issue. The footnote content is injected into the DOM after MathJax first runs. I’m guessing downgrading to MathJax v2 will not make a difference.

You’ll either need a callback from the footnote plugin or just another listener for DOM mutations like you have for the quiz, e.g.,

jQuery(‘body’).on(‘DOMNodeInserted’, ‘.qtip’, function(){ MathJax.typesetPromise(); });

or some such.

Again, we don’t have the resources to provide free support for problems unrelated to this plugin.

I of course understand, and I thank you very much for you kind support, @pkra. With a delayed repeated call, I have now gotten the issue solved. Thanks again.