use 'color' extension for MathJax

fixes CORE-595 test-plan: - go to a RCE instance (e.g. creating a course page) - click the equation editor toolbar icon - switch to advanced view - enter "\color{Red} Hello" - preview below should have the word "Hello" _all_ in red text, not just the H Change-Id: Id15620e40bdf4e502e202ffc8943f6c094adeeba Reviewed-on: https://gerrit.instructure.com/132288 Tested-by: Jenkins Reviewed-by: brian kirkby <[email protected]> Product-Review: brian kirkby <[email protected]> QA-Review: Tucker McKnight <[email protected]>
ralacas · Nov 9, 2017 · 655a0b6 · 655a0b6
1 parent 0dcc7aa
commit 655a0b6
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/public/javascripts/mathml.js b/public/javascripts/mathml.js
@@ -18,8 +18,17 @@
 
 import $ from 'jquery'
 
+// configure MathJax to use 'color' extension fo LaTeX coding
+const localConfig = {
+  TeX: {
+    extensions: ["color.js"]
+  }
+};
+
 export function loadMathJax (config_file, cb = null) {
   if (!isMathJaxLoaded() && shouldLoadMathJax()) {
+    // signal local config to mathjax as it loads
+    window.MathJax = localConfig;
     $.getScript(`//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=${config_file}`, cb);
   }
 }