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Opened 5 years ago

Closed 4 years ago

#46833 closed defect (bug) (wontfix)

Facebook embed blocks not previewable and cause console errors in customizer

Reported by: timph's profile timph Owned by:
Milestone: Priority: normal
Severity: normal Version:
Component: Embeds Keywords: needs-patch
Focuses: Cc:


steps to replicate:

  1. Create new post
  2. Add a new Facebook Embed block (I used same URL from Theme Unit Test Data as this is where it was noticed: ).
  3. Save and publish post.
  4. Visit post on frontend of site - no console errors appear.
  5. Click Customize in adminbar.

The result is that console errors reported, and the embed does not display giving inaccurate previews in the customizer:

5uPlmwCxNZ9.js:70 ErrorUtils caught an error: "Failed to set the 'domain' property on 'Document': Assignment is forbidden fo...". Subsequent errors won't be logged; see

Change History (3)

#1 @matdemystify
5 years ago

I'm getting the same issue and it's a block on us using gutenburg, i do wonder if it's not browser specific. weirdly changing to the default theme it worked more consistently.

#2 @matdemystify
5 years ago

  • Component changed from Customize to Embeds
  • Version 5.1 deleted

#3 @whyisjake
4 years ago

  • Milestone Awaiting Review deleted
  • Resolution set to wontfix
  • Status changed from new to closed

Hey there @timph. It looks like Facebook and Instagram are going to be dropping support for unauthenticated oEmbed requests October 24th and as a result, we will be removing this feature from WordPress core. There are a few plugins that will be providing support if needed. See #50861 for more info.

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