Typeset all over again

add_re_typeset_handler.js

function addReTypesetHandler() {
    var script = document.createElement("script");
    script.innerHTML = ` 
        last = "1";
        setInterval(function() {
            var tag = document.getElementsByClassName("invisible")[0];
            if (tag.innerHTML != last) {
                MathJax.Hub.Queue(["Typeset", MathJax.Hub]);
                last = tag.innerHTML;
            }
        }, 50);
    `
    document.body.appendChild(script);

    var updateTag = document.createElement("span");
    updateTag.classList.add("invisible");
    document.body.appendChild(updateTag);
}