CKEditor 5 HTML Support Configuration in Django

When working with CKEditor 5 in Django, you need to properly configure the General HTML Support (GHS) feature to preserve custom classes and HTML elements. Your approach is on the right track, but there are a few adjustments needed.

Correct Configuration Approach

For Django-CKEditor integration, you need to ensure that:

1. The GeneralHtmlSupport plugin is properly included
2. The configuration syntax matches what CKEditor 5 expects

Here's a corrected configuration:

PYTHONCopied
CKEDITOR_5_CONFIGS = {
    'default': {
        'toolbar': ['heading', '|', 'bold', 'italic', 'link',
                  'bulletedList', 'numberedList', 'blockQuote', 'imageUpload'],
        
        # Include the GeneralHtmlSupport plugin
        'plugins': ['Image', 'Link', 'GeneralHtmlSupport'],
        
        # Configure htmlSupport
        'htmlSupport': {
            'allow': [
                {
                    'name': /.*/,  # This should be a regex object, not a string
                    'attributes': True,
                    'classes': True,
                    'styles': True
                }
            ]
        },
    }
}

Key Issues to Fix

1. Make sure the GeneralHtmlSupport plugin is explicitly included in the plugins list
2. The regex pattern should be a JavaScript regex object, not a Python string with quotes

Alternative Solution

If you're using django-ckeditor, you might need to create a custom build of CKEditor that includes the GHS plugin. This typically involves:

1. Creating a custom JavaScript build configuration
2. Including the necessary plugins
3. Referencing this custom build in your Django settings

Remember that the exact implementation may vary depending on which Django-CKEditor integration package you're using.