Merge pull request #510 from cmbuckley/mathjax4

cmbuckley · web-flow · commit 86c34c199067 · 2025-08-30T23:26:02.000+01:00
MathJax 4
diff --git a/_cf/security-headers/index.js b/_cf/security-headers/index.js
@@ -28,8 +28,7 @@ const csp = {
     ],
     'font-src': [
         'https://fonts.gstatic.com',
-        `https://cdnjs.cloudflare.com/ajax/libs/mathjax/${dependencies.mathjax}/`,
-        'about:', // https://github.com/mathjax/MathJax/issues/256#issuecomment-37990603
+        'https://cdn.jsdelivr.net/npm/mathjax@4/',
     ],
     'object-src': [
         "'self'",
diff --git a/_cf/security-headers/package.json b/_cf/security-headers/package.json
@@ -1,6 +1,5 @@
 {
     "main": "index.js",
     "dependencies": {
-      "mathjax": "3.2.2"
     }
 }
diff --git a/_ci/fingerprints.sh b/_ci/fingerprints.sh
@@ -4,6 +4,7 @@ fingerprints=_data/fingerprints.yml
 
 files=(
     "icons:assets/img/icons/icons.svg"
+    "maths:assets/js/maths.js"
     "scripts:assets/js/scripts.js"
     "search:assets/js/search.js"
     "style:assets/css/style.css"
diff --git a/_data/fingerprints.yml b/_data/fingerprints.yml
@@ -1,5 +1,6 @@
 lunr: 2.3.6
 icons: 715715b9
+maths: 5414f235
 scripts: e83760ff
 search: b74b56ab
 style: 01de7bae
diff --git a/_data/package.json b/_data/package.json
diff --git a/_includes/scripts.html b/_includes/scripts.html
@@ -10,7 +10,12 @@
 
 <script defer="defer" nonce="" src="{% include mainurl.html %}/assets/js/scripts.js{% include v.html id='scripts' %}"></script>
 {%- if page.maths -%}
-<script defer="defer" nonce="" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/{{ site.data.package.dependencies.mathjax }}/es5/tex-chtml.js"></script>
+<style>
+mjx-help { display: none !important; }
+.mjx-selected { outline: none !important; }
+</style>
+<script defer="defer" nonce="" src="{% include mainurl.html %}/assets/js/maths.js{% include v.html id='maths' %}"></script>
+<script defer="defer" nonce="" src="https://cdn.jsdelivr.net/npm/mathjax@4/tex-mml-chtml.js"></script>
 {%- endif -%}
 {%- if page.search -%}
 <script defer="defer" nonce="" src="{% include mainurl.html %}/assets/js/lunr.js{% include v.html id='lunr' %}"></script>
diff --git a/_includes/v.html b/_includes/v.html
@@ -1,7 +1,7 @@
 {%- unless site.suppress_fingerprints -%}
   ?v=
 
-  {%- assign fingerprints = 'icons: 715715b9,scripts: e83760ff,search: b74b56ab,style: 01de7bae' | split: ',' -%}
+  {%- assign fingerprints = 'icons: 715715b9,maths: 5414f235,scripts: e83760ff,search: b74b56ab,style: 01de7bae' | split: ',' -%}
   {%- assign found = false -%}
 
   {%- if jekyll.environment == 'production' -%}
diff --git a/assets/js/maths.js b/assets/js/maths.js
@@ -0,0 +1,16 @@
+window.MathJax = {
+  options: {
+    makeCollapsible: false,
+    a11y: {
+      help: false,
+      backgroundOpacity: 0,
+    },
+  },
+  startup: {
+    ready() {
+      const {SpeechExplorer} = MathJax._.a11y.explorer.KeyExplorer;
+      SpeechExplorer.prototype.help = () => {};
+      MathJax.startup.defaultReady();
+    },
+  },
+};
diff --git a/package.json b/package.json
@@ -1,7 +1,4 @@
 {
-  "dependencies": {
-    "mathjax": "3.2.2"
-  },
   "devDependencies": {
     "netlify-plugin-html-validate": "^1.1.1",
     "netlify-plugin-seo-lint": "cmbuckley/netlify-plugin-seo-lint#fork"

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,5 @@`
`1`	`1`	`{`
`2`	`2`	`"main": "index.js",`
`3`	`3`	`"dependencies": {`
`4`		`- "mathjax": "3.2.2"`
`5`	`4`	`}`
`6`	`5`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,4 @@`
`1`	`1`	`{`
`2`		`- "dependencies": {`
`3`		`- "mathjax": "3.2.2"`
`4`		`- },`
`5`	`2`	`"devDependencies": {`
`6`	`3`	`"netlify-plugin-html-validate": "^1.1.1",`
`7`	`4`	`"netlify-plugin-seo-lint": "cmbuckley/netlify-plugin-seo-lint#fork"`