core/modules/ckeditor/src/Plugin/Editor/CKEditor.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
index abf409b..a9544f4 100644
--- a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
+++ b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
@@ -223,6 +223,10 @@ public function settingsForm(array $form, FormStateInterface $form_state, Editor
       ),
     ));
     $config = $this->getJSSettings($fake_editor);
+    // Force *all* CKEditor plugins to be loaded, including those whose
+    // isEnabled() method returns FALSE.
+    $config['extraPlugins'] = implode(',', array_keys($all_external_plugins));
+    $config['drupalExternalPlugins'] = array_map('file_create_url', $all_external_plugins);
     // Remove the ACF configuration that is generated based on filter settings,
     // because otherwise we cannot retrieve per-feature metadata.
     unset($config['allowedContent']);