[wp-trac] [WordPress Trac] #45517: Gist embeds no longer work with 5.0

[WordPress Trac]

#45517: Gist embeds no longer work with 5.0
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 Reporter:  dartiss       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.0
 Severity:  normal        |   Keywords:
  Focuses:                |
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 This was reported by a forum user (https://wordpress.org/support/topic
 /unable-to-embed-github-gist/), by I can recreate the issue myself (and
 will affect me in due course).

 When running WordPress 4.9.8 with Gutenberg you could embed Gists -
 indeed, I have a number of such embeds on my site. However, update to
 WordPress 5.0 and the Gists stop working. Within the editor it says
 "Sorry, we could not embed that content.". If you then attempt to display
 this, it just shows the URL.

 On my 5.0 test site I had an older post with a Gist in it (and one that
 worked before) and this just displays the URL now (and unlinked) - this
 therefore looks to me as if previous Gist embeds will now stop working
 once updated to 5.0.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45517>
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