[wp-trac] [WordPress Trac] #61349: Slideshare embeds returning a 404 error

[WordPress Trac]

#61349: Slideshare embeds returning a 404 error
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 Reporter:  talldanwp     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Embeds        |    Version:  6.5.3
 Severity:  normal        |   Keywords:  needs-testing
  Focuses:                |
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 Originally reported in Gutenberg -
 https://github.com/WordPress/gutenberg/issues/62203

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 ### Description

 On the latest version of WordPress on a self-hosted site the Block for
 SlideShare embed is not working. Any attempt to put in the URL of the
 slide as instructed fails. Message states "Sorry, this content could not
 be embedded."  even though it is a valid url from SlideShare

 https://www.slideshare.net/slideshow/the-art-of-the-pitch-wordpress-
 relationships-and-sales/269457571

 Interestingly, previous slides that I have embedded are still visible. I
 can even duplicate those blocks. However I can't switch out the URL, the
 same "Sorry, this content could not be embedded." message happens if I
 attempt any replacement of the existing URL

 I resorted to flipping to code view and embedding an iframe to get around
 the current blocker ( not ideal)

 See this page for reference https://newyorkerlaura.com/wordpress-slide-
 decks/. first deck is an iframe all others are successful embeds using the
 SlideShare block that were done over a year ago.

 ### Step-by-step reproduction instructions

 1. Select the Slide Share Block
 2. Attempt to enter a slide share URL such as
 https://www.slideshare.net/slideshow/the-art-of-the-pitch-wordpress-
 relationships-and-sales/269457571
 3. The block will not accept the valid URL

 [[Image(https://github.com/WordPress/gutenberg/assets/32318563/0aada927-47b0-4f22-9883-37fb862dd71b)]]


 ### Screenshots, screen recording, code snippet

 _No response_

 ### Environment info

 WordPress 6.5.3 running 2017 theme.

 ### Please confirm that you have searched existing issues in the repo.

 Yes

 ### Please confirm that you have tested with all plugins deactivated
 except Gutenberg.

 Yes

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Ticket URL: <https://core.trac.wordpress.org/ticket/61349>
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