Mathjax CDN to shutdown April 30th 2017

[Adam Aviv <aviv@usna.edu>]

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Hi all,

I saw this blogpost recently about cdn.mathjax.org will be shutdown on
April 30th 2017.

https://www.mathjax.org/cdn-shutting-down/

There's a replacement to use cloudflair hosting instead

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?...

Is there a plan to move the default org-mode mathjax header link over to
this by 30 April? It's a one line change in ox-htm.el for mathjax options.
I've attached that patch for convenience.  However, after a bit of
grepping, there should be some changes to the documentation which refers to
using the mathjax CDN and stuff.

On another note, the default option of using orgmode.org's hosting of
mathjax.sh should be updated to support HTTPS because most browsers block
scripts loaded under http if the page is loaded under https. Or, that
default should also change to the cloudflare cdn if it fits within the
terms of service. Perhaps that should be a discussion for another thread,
though.

-aja

-- 
Adam J. Aviv, PhD
*Asst. Professor*
*Computer Science*
*U.S. Naval Academy*
*(410) 293- 6655*

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From 80e5b49bd1666418a58124e74d7098fd4d5fcae5 Mon Sep 17 00:00:00 2001
From: Adam Aviv <aviv@usna.edu>
Date: Wed, 12 Apr 2017 09:16:31 -0400
Subject: [PATCH] Fixing link to mathjax cdn as cdn.mathjax.org is shutting
 down Apirl 30, 2017

---
 lisp/ox-html.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index 251e1be..70d3bde 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -1160,7 +1160,7 @@ See `format-time-string' for more information on its components."
 ;;;; Template :: Mathjax
 
 (defcustom org-html-mathjax-options
-  '((path "http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML" )
+  '((path "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML" )
     (scale "100")
     (align "center")
     (font "TeX")
-- 
2.10.1 (Apple Git-78)