missing text after equation blogger in safari not Firefox/chrome

Created by: makeyourownalgorithmicart

The following blogger text leads to the text after the second equation to be missing in Safari, but not in Firefox or Chrome.

Here's a simple example:

$$ \sum_{n=1}^{\infty} {n} =  1 + 2 + 3 + 4 + \cdots $$

As we keep adding these ever increasing numbers, the sum gets larger and larger and larger. The sum of this series is infinity.

What about this one:

$$ \sum_{n=1}^{\infty} {n} =  1 + 2 + 3 + 4 + \cdots $$

saaa

bbb

ccc

ddd

The mathjax library is included as per usual in the html:

<script type="text/x-mathjax-config"> MathJax.Hub.Config({tex2jax: {inlineMath: [['$','$'], ['\$','\$']]}}); </script> <script src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"> </script>

I've been using mathjax in blogger for years, and this seems to be a new/recent problem.

All software is latest - MacOS, browsers and mathjax.

Here is the output from Safari:

Here's Firefox:

And Chrome: