plotly · emilykl · Jul 16, 2026 · Jul 16, 2026
diff --git a/src/js/src/plotly/constants.js b/src/js/src/plotly/constants.js
@@ -32,8 +32,6 @@ module.exports = {
     svg: /^data:image\/svg\+xml,/
   },
 
-  mathJaxConfigQuery: '?config=TeX-AMS-MML_SVG',
-
   // time [in ms] after which printToPDF errors when image isn't loaded
   pdfPageLoadImgTimeout: 20000
 }
diff --git a/src/py/kaleido/_page_generator.py b/src/py/kaleido/_page_generator.py
@@ -17,11 +17,8 @@
 
 _logger = logistro.getLogger(__name__)
 
-DEFAULT_PLOTLY = "https://cdn.plot.ly/plotly-2.35.2.js"
-DEFAULT_MATHJAX = (
-    "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js"
-    "?config=TeX-AMS-MML_SVG"
-)
+DEFAULT_PLOTLY = "https://cdn.plot.ly/plotly-3.7.0.js"
+DEFAULT_MATHJAX = "https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.2.2/es5/tex-svg.min.js"
 
 KJS_PATH = Path(__file__).resolve().parent / "vendor" / "kaleido_scopes.js"
 
@@ -54,12 +51,6 @@ class PageGenerator:
     <head>
         <style id="head-style"></style>
         <title>Kaleido-fier</title>
-        <script>
-          window.PlotlyConfig = {MathJaxConfig: 'local'}
-        </script>
-        <script type="text/x-mathjax-config">
-          MathJax.Hub.Config({ "SVG": { blacker: 0 }})
-        </script>
 """
     """The header is the HTML that always goes at the top. Rarely needs changing."""
 

diff --git a/src/py/kaleido/kaleido.py b/src/py/kaleido/kaleido.py
@@ -143,7 +143,7 @@ def __init__(  # noqa: PLR0913
 
             mathjax (str | Path | Literal[False] | None, optional):
                 A path or URL to a mathjax.js file. If False, mathjax is
-                disabled. Defaults to None- which means to use version 2.35 via
+                disabled. If not provided, Kaleido will use MathJax v3 via
                 CDN.
 
             headers (dict[str, str] | None, optional):

diff --git a/src/py/kaleido/vendor/kaleido_scopes.js b/src/py/kaleido/vendor/kaleido_scopes.js
@@ -37,41 +37,41 @@ module.exports = value => {
 };
 
 },{}],3:[function(require,module,exports){
-'use strict';
-
-/**
- * Is this string all whitespace?
- * This solution kind of makes my brain hurt, but it's significantly faster
- * than !str.trim() or any other solution I could find.
- *
- * whitespace codes from: http://en.wikipedia.org/wiki/Whitespace_character
- * and verified with:
- *
- *  for(var i = 0; i < 65536; i++) {
- *      var s = String.fromCharCode(i);
- *      if(+s===0 && !s.trim()) console.log(i, s);
- *  }
- *
- * which counts a couple of these as *not* whitespace, but finds nothing else
- * that *is* whitespace. Note that charCodeAt stops at 16 bits, but it appears
- * that there are no whitespace characters above this, and code points above
- * this do not map onto white space characters.
- */
-
-module.exports = function(str){
-    var l = str.length,
-        a;
-    for(var i = 0; i < l; i++) {
-        a = str.charCodeAt(i);
-        if((a < 9 || a > 13) && (a !== 32) && (a !== 133) && (a !== 160) &&
-            (a !== 5760) && (a !== 6158) && (a < 8192 || a > 8205) &&
-            (a !== 8232) && (a !== 8233) && (a !== 8239) && (a !== 8287) &&
-            (a !== 8288) && (a !== 12288) && (a !== 65279)) {
-                return false;
-        }
-    }
-    return true;
-}
+'use strict';
+
+/**
+ * Is this string all whitespace?
+ * This solution kind of makes my brain hurt, but it's significantly faster
+ * than !str.trim() or any other solution I could find.
+ *
+ * whitespace codes from: http://en.wikipedia.org/wiki/Whitespace_character
+ * and verified with:
+ *
+ *  for(var i = 0; i < 65536; i++) {
+ *      var s = String.fromCharCode(i);
+ *      if(+s===0 && !s.trim()) console.log(i, s);
+ *  }
+ *
+ * which counts a couple of these as *not* whitespace, but finds nothing else
+ * that *is* whitespace. Note that charCodeAt stops at 16 bits, but it appears
+ * that there are no whitespace characters above this, and code points above
+ * this do not map onto white space characters.
+ */
+
+module.exports = function(str){
+    var l = str.length,
+        a;
+    for(var i = 0; i < l; i++) {
+        a = str.charCodeAt(i);
+        if((a < 9 || a > 13) && (a !== 32) && (a !== 133) && (a !== 160) &&
+            (a !== 5760) && (a !== 6158) && (a < 8192 || a > 8205) &&
+            (a !== 8232) && (a !== 8233) && (a !== 8239) && (a !== 8287) &&
+            (a !== 8288) && (a !== 12288) && (a !== 65279)) {
+                return false;
+        }
+    }
+    return true;
+}
 
 },{}],4:[function(require,module,exports){
 // shim for using process in browser
@@ -2638,8 +2638,6 @@ module.exports = {
     svg: /^data:image\/svg\+xml,/
   },
 
-  mathJaxConfigQuery: '?config=TeX-AMS-MML_SVG',
-
   // time [in ms] after which printToPDF errors when image isn't loaded
   pdfPageLoadImgTimeout: 20000
 }

diff --git a/src/py/tests/test_page_generator.py b/src/py/tests/test_page_generator.py
@@ -25,12 +25,6 @@
     <head>
         <style id="head-style"></style>
         <title>Kaleido-fier</title>
-        <script>
-          window.PlotlyConfig = {MathJaxConfig: 'local'}
-        </script>
-        <script type="text/x-mathjax-config">
-          MathJax.Hub.Config({ "SVG": { blacker: 0 }})
-        </script>
 
     </head>
     <body style="{margin: 0; padding: 0;}"><img id="kaleido-image" /></body>