If we use the Tab key to navigate through the questionnaires that have some `math` role, the mathematical expresions will be highlighted

[jaguarfi]

If we use the keyboard to navigate through the questionnaires that have some math role, all the math expressions will be recognized as interactive elements. This should not happen because the mathematical expressions are just part of the text. Or maybe we want to keep them interactive. I don't know 🤔 Any case, if we want to keep them in interactive, we should use some type of aria-label to describe the element.

[jaguarfi]

Moreover, in this particular case, when we use a screen reader, the screen reader do not read out the answers. It only says "checkbox, no checked"

[markkuriekkinen]

The MathJax.js library has already been developed with accessibility in mind. It is intentional that tab navigation finds the formulas. I don't know about screen readers, though I thought that MathJax.js should have good support for screen readers. It may depend on the screen reader software and configurations too. Nevertheless, we don't develop MathJax, but A+ could ensure that MathJax uses accessible default configurations. Courses might change the MathJax configurations, but the platform should define accessible defaults.

The MathJax documentation describes how to define the settings in a script element in the html page (JS object with certain fields etc.).

[jaguarfi]

Check this out https://docs.mathjax.org/en/v2.7-latest/misc/accessibility-features.html#mathjax-accessibility-extensions

[markkuriekkinen]

@jaguarfi Then we want to enable the MathJax accessibility extensions. It looks like they should improve accessibility without any downsides, so let's try it.