diff -u b/core/misc/ajax.es6.js b/core/misc/ajax.es6.js
--- b/core/misc/ajax.es6.js
+++ b/core/misc/ajax.es6.js
@@ -1036,8 +1036,24 @@
       // Apply any settings from the returned JSON if available.
       const settings = response.settings || ajax.settings || drupalSettings;
 
+      // Store SVG elements
+      const svgStorage = {};
+
       // Parse response.data into an element collection.
-      const $newContent = $($.parseHTML(response.data, true));
+      const $newContent = $($.parseHTML(response.data, true).map((element) => {
+        // If the response contains an SVG, replace it with a placeholder.
+        if (element.nodeName && element.nodeName === 'svg') {
+          // Create an ID to reference later.
+          const hash = `svg-${Math.random().toString(36).substring(7)}`;
+          svgStorage[hash] = element.outerHTML;
+
+          // Create a plceholder DIV that will be replaced with the SVG.
+          const svgPlaceHolder = document.createElement('div');
+          svgPlaceHolder.id = hash;
+          return svgPlaceHolder;
+        }
+        return element;
+      }));
 
       // If removing content from the wrapper, detach behaviors first.
       switch (method) {
@@ -1055,6 +1071,14 @@
       // Add the new content to the page.
       $wrapper[method]($newContent);
 
+      // If there is any SVG data, start replacing them.
+      if (Object.keys(svgStorage).length) {
+        Object.keys(svgStorage).forEach((key) => {
+          // Replace each placeholder DIV with the saved SVG data.
+          $(`#${key}`).replaceWith(svgStorage[key]);
+        });
+      }
+
       // Immediately hide the new content if we're using any effects.
       if (effect.showEffect !== 'show') {
         $newContent.hide();
diff -u b/core/misc/ajax.js b/core/misc/ajax.js
--- b/core/misc/ajax.js
+++ b/core/misc/ajax.js
@@ -487,7 +487,19 @@
 
       var settings = response.settings || ajax.settings || drupalSettings;
 
-      var $newContent = $($.parseHTML(response.data, true));
+      var svgStorage = {};
+
+      var $newContent = $($.parseHTML(response.data, true).map(function (element) {
+        if (element.nodeName && element.nodeName === 'svg') {
+          var hash = 'svg-' + Math.random().toString(36).substring(7);
+          svgStorage[hash] = element.outerHTML;
+
+          var svgPlaceHolder = document.createElement('div');
+          svgPlaceHolder.id = hash;
+          return svgPlaceHolder;
+        }
+        return element;
+      }));
 
       switch (method) {
         case 'html':
@@ -503,6 +515,12 @@
 
       $wrapper[method]($newContent);
 
+      if (Object.keys(svgStorage).length) {
+        Object.keys(svgStorage).forEach(function (key) {
+          $('#' + key).replaceWith(svgStorage[key]);
+        });
+      }
+
       if (effect.showEffect !== 'show') {
         $newContent.hide();
       }
@@ -599 +617 @@
-})(jQuery, window, Drupal, drupalSettings);
+})(jQuery, window, Drupal, drupalSettings);
\ No newline at end of file