Towards universal rendering in MathJax

Mathematics support on the web is currently very limited mainly due to the lack of browser support for the dedicated markup language MathML. While for visual display JavaScript libraries like MathJax can ensure flawless rendering of formulas across all platforms and browsers, there currently exists no system independent assistive technology solutions for Mathematics. We report on the attempt to transform MathJax into a universal rendering solution, providing accessibility also for readers with visual, print, and motor impairments. As our goal is to integrate seamlessly with other assistive technology solutions, we are faced with a number of technical challenges to provide a consistent user experience, regardless of the particular combination of platform, browser, and screen reader employed by readers. This paper presents MathJax's accessibility features and some of the technical challenges to motivate a wish-list for future standards to enhance web accessibility for STEM content.