It looks like you have a security program called Rapport installed on your client that is blocking MathJax because it thinks it is a cross site scripting threat.
In reply to Daniel Thies
Re: Use STACK equation preview box in other question types?
by Seth Mengal -
Its not Rapport, also happening with me Daniel.
Uncaught Error: Can't make callback from given data
at USING (cdn.mathjax.org/mathjax/latest/MathJax.js?delayStartupUntil=configured:19)
at Object.Push (cdn.mathjax.org/mathjax/latest/MathJax.js?delayStartupUntil=configured:19)
at Object.Queue (cdn.mathjax.org/mathjax/latest/MathJax.js?delayStartupUntil=configured:19)
at HTMLInputElement.<anonymous> (attempt.php:39)
Seems if the textbox has a value at 'second try' - the renderer is not able to point to the HTML input box?
In reply to Seth Mengal
Re: Use STACK equation preview box in other question types?
by Daniel Thies -
Are you loading MathJax in the header or are you using the Moodle MathJax filter?
In reply to Seth Mengal
Re: Use STACK equation preview box in other question types?
by Daniel Thies -
Andrew and I found that certain review options change the DOM structure so I had to update the script
<script>
window.MathJax = {
AuthorInit: function() {
MathJax.Hub.Register.StartupHook('End', function() {
var preview = document.createElement('span');
preview.setAttribute('class', 'filter_mathjaxloader_equation')
preview.innerHTML = ' ``';
MathJax.Hub.processSectionDelay = 0;
MathJax.Hub.Queue(['Typeset', MathJax.Hub, preview]);
var inputs = document.querySelectorAll('.subquestion input, .shortanswer .answer input');
for (var i = 0; i < inputs.length; i++) {
var source = inputs[i];
if (source.getAttribute('type') === 'text') {
source.parentNode.appendChild(preview.cloneNode(true));
MathJax.Hub.Queue(['Typeset', MathJax.Hub, source.parentNode.lastChild]);
source.parentNode.lastChild.innerHTML = '`' + source.value + '`';
source.addEventListener('input', function() {
var math = MathJax.Hub.getAllJax(this.parentNode)[0];
MathJax.Hub.Queue(['Text', math, this.value]);
});
}
}
});
}
}
</script>