I just met Copy and Paste Math|MathJax which is very interesting but really:
it shouldn’t stay so!
Copy-and-paste MathML should happen as soon as you invoke the copy command after having selected (part of) the formula.
Hopefully, MathJax will consider implementing that part as well.
In this video, I find the paste phase pathetic: one really needs correct media-designation in the clipboard so that such is only needed when you have special desires. That one is a normal desire.
