上传没有问题。但是当我查找文章进行编辑时，我看不到youtube视频

**保存前：**x1c 0d1x
保存后：

但实际上iframe块在那里。问题是我无法再次在管理面板中看到它

settings.py

CKEDITOR_CONFIGS = {
    'default': {
        'toolbar': 'CMS',
        'width': '100%',
        'toolbar_CMS': [
            ['Format', 'Styles', 'FontSize'],
            [ 'Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript'],
            ['TextColor', 'BGColor'],
            ['Link', 'Unlink'],
            ['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'],
            ['Undo', 'Redo'],
            ['Copy', 'Paste', 'PasteText', 'PasteFromWord'],
            ['SelectAll', 'Find', 'Replace'],
            ['NumberedList', 'BulletedList'],
            ['Outdent', 'Indent'],
            ['Smiley', 'SpecialChar', 'Blockquote', 'HorizontalRule'],
            ['Table', 'Image', 'Youtube'],
            ['ShowBlocks', 'Source', 'About']
            
        ],
        'extraPlugins': 'youtube',
        'contentsCss': (
            '/staticfiles/ckeditor/customization-files/style.css',
            '/staticfiles/ckeditor/customization-files/bootstrap.css',
        ),
    },
}

CKEDITOR_UPLOAD_PATH = 'content/ckeditor/'

models.py

class Article(models.Model):
    title = models.CharField(max_length=200)
    content = RichTextField(
        extra_plugins=['youtube'],
        null = False,
        blank=False,
        external_plugin_resources=[(
            'youtube',
            '/staticfiles/ckeditor/extra_plugins/youtube/',
            'plugin.js',
        )],
        )
    updated = models.DateField(auto_now=True)
    created = models.DateField(auto_now_add=True)

Django版本：3.2.3 django-ckeditor版本：6.1.0
其他详细信息：当我点击“查看HTML源”并保存文章，然后甚至从数据库中删除当前视频