説明
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.
スクリーンショット
A URL with no oEmbed provider shows as a plain link by default. 
With OpenGraph Fallback Embed active, the same URL renders as a rich card with title, description, and image. 
The OpenGraph Embed block in the editor with a live preview.
ブロック
このプラグインは1個のブロックを提供します。
- OpenGraph Embed Embed any page as a rich link card using its OpenGraph tags.
FAQ
-
The plugin falls back to Twitter Card meta tags, then to the page’s
<title>and<meta name="description">. If none of these are available, the original WordPress output is preserved. -
Does this override existing embed providers?
-
No. This plugin only activates when WordPress has no other embed handler for the URL.
-
Can I customise the card appearance?
-
The card uses the
.og-fallback-embedCSS class. You can override styles in your theme.
評価
このプラグインにはレビューがありません。
貢献者と開発者
変更履歴
1.3.7
- Added screenshots, and tweaked readme.txt.
1.3.6
- Removed a dev file from the plugin zip.
1.3.5
- Add source code repository link to readme.
- Use plugin-specific prefix for transient cache keys.
1.3.4
- Tweak the plugin header.
1.3.3
- Remove one more file from the plugin zip.
1.3.2
- Fix the block version number not being bumped in the last release.
1.3.1
- Remove some unnecessary files from the plugin zip file.
1.3.0
- Add support for falling back to OG tags when the Embed block fails.
1.2.0
- Add custom Gutenberg block for manual OpenGraph embeds.
- Add REST API endpoint for editor previews.
- Improve fallback chain: OG Twitter Card HTML meta.
1.1.0
- Add transient caching for fetched metadata.
1.0.0
- Initial release with auto-embed fallback.