Nice Display Bug (not imortant)

My only problem with Mathjax is that the equations can be quite slow to load. Images may not be immediate but they are faster than Mathjax which even has a little counter to show how far it has got.

I notice that the original version of LatexRender gives an error with

\mathbf{\textbf{\bigotimes}}

so somewhere your code may be suppressing this error.