markdown / mathjax - right bracket of big matrices moved to new line

[RafalSkolasinski]

If one have a big matrix that doesn't fit on a screen sometimes it works nice and one just need to scroll right to see whole of it.

In some cases however, especially on small, laptop screen, right bracket is split and moved to the next line which looks pretty ugly.

Example would be following put into markdown

\begin{pmatrix}- B \left(k_{x}^{2} + k_{y}^{2}\right) + C - D \left(k_{x}^{2} + k_{y}^{2}\right) + M & A \left(k_{x} + i k_{y}\right) & 0 & 0\\A \left(k_{x} - i k_{y}\right) & B \left(k_{x}^{2} + k_{y}^{2}\right) + C - D \left(k_{x}^{2} + k_{y}^{2}\right) - M & 0 & 0\\0 & 0 & - B \left(k_{x}^{2} + k_{y}^{2}\right) + C - D \left(k_{x}^{2} + k_{y}^{2}\right) + M & A \left(- k_{x} + i k_{y}\right)\\0 & 0 & - A \left(k_{x} + i k_{y}\right) & B \left(k_{x}^{2} + k_{y}^{2}\right) + C - D \left(k_{x}^{2} + k_{y}^{2}\right) - M\end{pmatrix}

It usually happens to me with big sympy matrices (see bellow) but fact that I reproduced it in markdown indicates that it is not sympy issue.

Checked on today jupyter/notebook master with Chrome and Firefox.

[minrk]

What's a little weird is that this only happens on output, but the same latex in a markdown cell doesn't trigger the wrap.

MathJax puts its content in a nobr, which I assume is meant to prevent this, but that's not getting respected somehow.

[RafalSkolasinski]

It is also weird that bug appears randomly. It depends for example on the
width of browser window.

[minrk]

There is a very good chance that this is a browser bug, not respecting its own no-reflow logic. There are many CSS bugs relating to non-integer sizes, where one calculation rounds up, another rounds down, and you end up with scrollbars/etc where they shouldn't be.

[RafalSkolasinski]

Seems to still exists on Firefox: 50.0.2