- Facebook and Twitter/X card previews update in real-time
- Renders below the OG fieldset in article/menu editors
- Reads og_title, og_description, og_image with fallback to
article title and meta description
- CSS mockups of each platform's card layout
- Registered via joomla.asset.json Web Asset Manager
- Safe DOM construction (no innerHTML with user data)
- MutationObserver watches media field for image changes
Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Jonathan Miller
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