Merge pull request #26262 from Frederick-S/master

MathJax: add two missing properties to SVGOutputProcessor

types/mathjax/index.d.ts

@@ -1030,6 +1030,17 @@ declare namespace MathJax {
         * they were MathML, you might need to set this to true.
         */
         addMMLclasses?: boolean;
+        /*This controls whether the SVG output uses <use> elements to re-use font paths rather than repeat paths every
+        * time. If useGlobalCache (see below) is set to false, this will still reduce duplication of paths while keeping
+        * each SVG self-contained.
+        */
+        useFontCache?: boolean;
+        /*When set to true the SVG Output stores paths (corresponding to “fonts” in the SVG output) in a global SVG
+        * object using <defs> elements so that it can re-use them in all equations via <use> elements (much like a font
+        * file allows re-use of characters across the document). While set to true by default, it will have no effect if
+        * useFontCache is set to false.
+        */
+        useGlobalCache?: boolean;
         /*EqnChunk is the number of equations that will be typeset before they appear on screen. Larger values make for
         * less visual flicker as the equations are drawn, but also mean longer delays before the reader sees anything.
         */

types/mathjax/mathjax-tests.ts

@@ -57,4 +57,11 @@ MathJax.Hub.Config({
   "HTML-CSS": { linebreaks: { automatic: true } },
   CommonHTML: { linebreaks: { automatic: true } },
          SVG: { linebreaks: { automatic: true } }
-});
+});
+
+MathJax.Hub.Config({
+    SVG: {
+        useFontCache: true,
+        useGlobalCache: true
+    }
+})