Delayed Rendering Issues on Mobile

[mdhaber]

(While this could be a Chrome mobile issue, I haven't noticed it on other websites.)

As I scroll, page rendering is delayed: parts of the page are white until I scroll to a certain point, then everything renders at once. For example, scrolling up:

until I scroll a little further. Here is a more subtle example while scrolling down:

The problem is most noticeable in the scipy.optimize tutorial of the small demo, so perhaps it is related to the equations? Maybe this, too, will be fixed with the switch to MathJax.

I notice a rendering delay when scrolling through the SciPy 1.3.3 release documentation on mobile, too, but in that case the rendering happens after a certain amount of time rather than once I scroll to a certain point.

[Shekharrajak]

I tried in some mobile chrome browser, I didn't find the issue. Let me see if any other person has similar problem.

[Shekharrajak]

May be it is because now we are loading the mathjax from the cdn url -- see here