From a55291e2b354642ca9749f4f2dd68c344a5b21e2 Mon Sep 17 00:00:00 2001
From: Elke Kreim <elke.kreim@hs-hannover.de>
Date: Fri, 31 May 2024 13:56:34 +0200
Subject: [PATCH] Fix remote url for MathJax
Use local MathJax configured in filter_mathjaxloader
---
vle_specific.php | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/vle_specific.php b/vle_specific.php
index 24953878d..516a56f25 100644
--- a/vle_specific.php
+++ b/vle_specific.php
@@ -189,8 +189,27 @@ function stack_cors_link(string $filename): string {
* Gets the URL used for MathJax, might be VLE local.
*/
function stack_get_mathjax_url(): string {
- // TODO: figure out how to support VLE local with CORS.
- return 'https://cdn.jsdelivr.net/npm/mathjax@2.7.9/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
+ // HSH patch - 2024.05.31: Elke Kreim - elke.kreim@hs-hannover.de
+ // include fix https://github.com/maths/moodle-qtype_stack/pull/1194/files
+ // to use local installation of MathHax configured in plugin filter_mathjaxloader
+ $mathjaxconfigurl = get_config('filter_mathjaxloader', 'httpsurl');
+ if ($mathjaxconfigurl) {
+ $questionpos = strpos($mathjaxconfigurl, '?');
+ if ($questionpos !== false) {
+ $querystring = substr($mathjaxconfigurl, $questionpos + 1);
+ $urlstring = substr($mathjaxconfigurl, 0, $questionpos);
+ parse_str($querystring, $queryparams);
+ $queryparams = array_merge(['config' => 'TeX-AMS-MML_HTMLorMML'], $queryparams);
+ $querystring = http_build_query($queryparams, null, '&', PHP_QUERY_RFC3986);
+ $url = $urlstring . '?' . $querystring;
+ } else {
+ $url = $mathjaxconfigurl . '?config=TeX-AMS-MML_HTMLorMML';
+ }
+
+ return $url;
+ } else {
+ return 'https://cdn.jsdelivr.net/npm/mathjax@2.7.9/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
+ }
}
/*
--
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