[wp-trac] [WordPress Trac] #48698: Update fails if there’s a "Custom Html" block and an Iframe inside it

[WordPress Trac]

#48698: Update fails if there’s a "Custom Html" block and an Iframe inside it
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 Reporter:  ozgurnevres   |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Editor        |     Version:  5.3
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by ozgurnevres):

 Hi,

 I've tried with this and getting the error:

 <iframe src="http://content.jwplatform.com/players/MnVLH1Ps-puACk8ZV.html"
 width="320" height="260" frameborder="0" scrolling="auto"></iframe>

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Ticket URL: <https://core.trac.wordpress.org/ticket/48698#comment:2>
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