Can I pass in a `<math>` element and get back rendered node?

Created by: runarberg

I’m rendering my math using a custom element that listens to an input of a <textarea>. MathJax doesn’t penetrate the shadow DOM when typesetting. So I’m wondering if I can simply pass in the <math> node that my custom element generates, receive the typeset <mjx-container> node and handle attaching it to the parent node my self?