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Facebook リンクの埋め込みは、 Facebook 社が oEmbed エンドポイントを廃止する決定をしたことにより、2020年10月24日以降は動作しません。Facebook のリンクをサイトに埋め込みたい場合、エンドポイントへのアクセスにはデベロッパーアカウントと appid の取得、認証トークンの送信が必要です。Facebook ドキュメント: App Development

Facebook 社のこのポリシー変更について WordPress 側から連絡を取りましたが、再考されることはありませんでした。WordPress 貢献者はこのページ等でユーザーに注意喚起すること以外、何もできません。

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With the Facebook Embed block you can add a Facebook post to your post or pages. The post needs to be a public post.

Besides Facebook Posts, you can also share links to Facebook Photos, Facebook Albums, and Facebook Videos.

You can not embed: Facebook pages, Facebook events, and Facebook groups

Embedded Facebook Video

Eight steps to embed a public Facebook post.

1. Where to find the relevant link?
2. Facebook adds a single link url to the date section of a post.
3. Copy the Link Address to your clipboard

4. Go to your post
5. Add the Facebook Embed block

ブロック追加の詳しい方法はこちらをご覧ください。

6. Paste the link from your clipboard into the “Enter URL to embed here” field.

7. In your editor, you see the link and the comment “Embedded content from facebook.com can’t be previewed in the editor”.

8. Use the “Preview” button to see how the post fits into your post/page

Block Toolbar

Besides the Mover and Drag & Drop Handle, the Block Toolbar for the Facebook embed shows four buttons:

• Transform to
• Change alignment
• Edit URL, and
• More Options.

Transform to:

You can transform a Facebook embed to a Group. This would give you the ability to change the background color around the Facebook embed.

Change Alignment

• Align left – Make the Facebook post left aligned
• Align center – Make the Facebook post alignment centered
• Align right – Make the Facebook post align right
• Wide width – Increase the width of the post beyond the content size
• Full width – Extend the facebook post to cover the full width of the screen.

Note: “Wide width” and “Full width” alignment need to be enabled by the Theme of your site.

Edit URL

Via the edit URL, you can change the Facebook Embed URL in the embed block. Overwrite the existing URL and click on the “Embed” Button on the right.

More Options:

Hide Block Settings

The Hide Block Settings option hides (or shows) the Block Setting panel in the editor’s sidebar.

Copy

Copy can be used to copy a selected block and then you can paste it wherever you want in the editor.

Duplicate

Duplicate can be used to duplicate selected block.

Insert Before

Insert a new block before the selected block(s).

Insert After

Insert a new block after the selected block(s).

Move To

If you select Move To, you will get a blue line inside your content, you can then use the arrows to move that line up and down to where you want the selected content to be moved into, hitting return on your keyboard at that point moves the block to that position.

Edit as HTML

The Edit as HTML option allows you to modify the HTML code of the embed block.

Add to Reusable blocks

Using the Add to Reusable blocks option lets you add the selected block to a list of reusable blocks, so you can use them on other posts or pages as well.

Group

Select the Group option if you want to create a group of blocks and treat them as a unit. You can for instance add a common background color or other blocks to the group.

Remove Block

With the Remove Block option, you can delete the selected block from your content.

Block Settings

Besides the Advanced section, the Facebook embed has only one setting in the “Block Settings” sidebar: Media Settings.

Media Settings

Via the Media Settings you can control the behavior of your post embed when viewed from a smaller device, like on a phone screen.

The Toggle switch turns on or off the resize functionality for smaller devices. The default setting is “on” or blue.

“Off:” This embed may not preserve its aspect ratio when the browser is resized. In the off position the toggle switch is gray.

“On:” This embed will preserve its aspect ratio when the browser is resized. The toggle switch turns blue in the “On” position.

Advanced

The advanced tab lets you add a CSS class to your block, allowing you to write custom CSS and style the block as you see fit.

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