core/modules/media/js/plugins/drupalmedia/plugin.js                   | 4 ++--
 .../media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/core/modules/media/js/plugins/drupalmedia/plugin.js b/core/modules/media/js/plugins/drupalmedia/plugin.js
index 4503be56eb..59a6c7e19d 100644
--- a/core/modules/media/js/plugins/drupalmedia/plugin.js
+++ b/core/modules/media/js/plugins/drupalmedia/plugin.js
@@ -89,7 +89,7 @@
       editor.widgets.add('drupalmedia', {
         // Minimum HTML which is required by this widget to work.
         allowedContent: 'drupal-media[data-entity-type,data-entity-uuid,data-view-mode,data-align,data-caption,alt,title]',
-        requiredContent: 'drupal-media[data-entity-type,data-entity-uuid,data-view-mode,data-caption]',
+        requiredContent: 'drupal-media[data-entity-type,data-entity-uuid]',
 
         pathName: Drupal.t('Embedded media'),
 
@@ -103,7 +103,7 @@
 
         upcast: function (element, data) {
           var attributes = element.attributes;
-          if (element.name !== 'drupal-media' || attributes['data-entity-type'] !== 'media' || attributes['data-entity-uuid'] === undefined || attributes['data-view-mode'] === undefined) {
+          if (element.name !== 'drupal-media' || attributes['data-entity-type'] !== 'media' || attributes['data-entity-uuid'] === undefined) {
             return;
           }
           data.attributes = CKEDITOR.tools.copy(attributes);
diff --git a/core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php b/core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php
index 4e4859c3f7..b81e636891 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php
@@ -119,7 +119,7 @@ protected function setUp() {
       'type' => 'blog',
       'title' => 'Animals with strange names',
       'body' => [
-        'value' => '<drupal-media data-caption="baz" data-entity-type="media" data-entity-uuid="' . $this->media->uuid() . '" data-view-mode="full"></drupal-media>',
+        'value' => '<drupal-media data-caption="baz" data-entity-type="media" data-entity-uuid="' . $this->media->uuid() . '"></drupal-media>',
         'format' => 'test_format',
       ],
     ]);