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A URL with no oEmbed provider shows as a plain link by default.
OpenGraph Fallback Embed adds a custom Gutenberg block and an auto-embed fallback that renders rich link cards using OpenGraph metadata from any URL.
Features:
- OpenGraph Embed block — Paste any URL to embed it as a styled card showing the page’s title, description, image, and site name.
- Auto-embed fallback — When WordPress can’t find an oEmbed provider for a URL pasted on its own line, this plugin automatically fetches the page’s OpenGraph tags and renders a card instead of a plain link.
- Graceful degradation — Falls back to Twitter Card meta tags, then to HTML
<title>and<meta name="description">when OpenGraph tags are missing. - Transient caching — Fetched metadata is cached for 7 days to minimise external requests.
Development
The source code for this plugin, including unminified JavaScript and CSS, is available on GitHub:
OpenGraph Fallback Embed on GitHub
The plugin uses @wordpress/scripts for building. Source files are in the src/ directory. See the repository README for build instructions.