From 3a29f77dc17a603710af60f9e6c546cf0de4a92c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Georges=20Dup=C3=A9ron?= <georges.duperon@gmail.com>
Date: Fri, 24 Mar 2017 16:34:25 +0100
Subject: [PATCH] Attempt to use async + defer to speed up loading of MathJax.

---
 dollar.rkt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dollar.rkt b/dollar.rkt
index 18b6b30af..4fab93138 100644
--- a/dollar.rkt
+++ b/dollar.rkt
@@ -59,15 +59,17 @@
    (collection-file-path "MathJax" "scribble-math")))
 |#
 
-(define (load-script-string src)
+(define (load-script-string src [async-defer #f])
   (string-append
    #<<EOJS
 (function() {
   document.write('<scr' + 'ipt type="text/javascript" src="
 EOJS
    src
+   "\""
+   (if async-defer " async=\"async\" defer=\"defer\" " "")
    #<<EOJS
-"></scr' + 'ipt>');
+></scr' + 'ipt>');
 })();
 EOJS
    ))