Fallback to Twitter provider when embedding X URLs

packages/block-library/src/embed/edit.js

@@ -29,6 +29,7 @@ import { useDispatch, useSelect } from '@wordpress/data';
 import { useBlockProps } from '@wordpress/block-editor';
 import { store as coreStore } from '@wordpress/core-data';
 import { View } from '@wordpress/primitives';
+import { getAuthority } from '@wordpress/url';
 
 const EmbedEdit = ( props ) => {
 	const {
@@ -137,6 +138,20 @@ const EmbedEdit = ( props ) => {
 		setAttributes( { url: newURL } );
 	}, [ preview?.html, attributesUrl, cannotEmbed, fetching ] );
 
+	// Try a different provider in case the embed url is not supported.
+	useEffect( () => {
+		if ( ! cannotEmbed || fetching || ! url ) {
+			return;
+		}
+
+		// Until X provider is supported in WordPress, as a workaround we use Twitter provider.
+		if ( getAuthority( url ) === 'x.com' ) {
+			const newURL = new URL( url );
+			newURL.host = 'twitter.com';
+			setAttributes( { url: newURL.toString() } );
+		}
+	}, [ url, cannotEmbed, fetching, setAttributes ] );
+
 	// Handle incoming preview.
 	useEffect( () => {
 		if ( preview && ! isEditingURL ) {

packages/block-library/src/embed/edit.native.js

@@ -33,6 +33,7 @@ import {
 } from '@wordpress/block-editor';
 import { store as coreStore } from '@wordpress/core-data';
 import { View } from '@wordpress/primitives';
+import { getAuthority } from '@wordpress/url';
 
 // The inline preview feature will be released progressible, for this reason
 // the embed will only be considered previewable for the following providers list.
@@ -160,6 +161,20 @@ const EmbedEdit = ( props ) => {
 		setAttributes( { url: newURL } );
 	}, [ preview?.html, url, cannotEmbed, fetching ] );
 
+	// Try a different provider in case the embed url is not supported.
+	useEffect( () => {
+		if ( ! cannotEmbed || fetching || ! url ) {
+			return;
+		}
+
+		// Until X provider is supported in WordPress, as a workaround we use Twitter provider.
+		if ( getAuthority( url ) === 'x.com' ) {
+			const newURL = new URL( url );
+			newURL.host = 'twitter.com';
+			setAttributes( { url: newURL.toString() } );
+		}
+	}, [ url, cannotEmbed, fetching, setAttributes ] );
+
 	// Handle incoming preview.
 	useEffect( () => {
 		if ( preview && ! isEditingURL ) {

packages/react-native-editor/CHANGELOG.md

@@ -12,6 +12,7 @@ For each user feature we should also add a importance categorization label  to i
 ## Unreleased
 -   [*] Limit inner blocks nesting depth to avoid call stack size exceeded crash [#54382]
 -   [*] Prevent crashes when setting an invalid media URL for Video or Audio blocks [#54834]
+-   [**] Fallback to Twitter provider when embedding X URLs [#54876]
 
 ## 1.104.0
 -   [*] Fix the obscurred "Insert from URL" input for media blocks when using a device in landscape orientation. [#54096]