[wp-trac] [WordPress Trac] #53512: JS errors when displaying legacy widgets using Twenty Seventeen theme

[WordPress Trac]

#53512: JS errors when displaying legacy widgets using Twenty Seventeen theme
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 Reporter:  Boniu91       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Widgets       |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 **WordPress** 5.8-beta3-51230
 **Browser** 91.0.4472.114
 **Theme** Twenty Seventeen

 Steps to reproduce:
 1. Downgrade to 5.7.x WordPress using the Beta Tester plugin
 2. Add a couple of widgets, make sure that Image widget is also added
 3. Upgrade to 5.8-beta
 4. Go to the Appearance > Widgets area and open JS console, see errors
 5. Click on the legacy Image widget, see another error

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Ticket URL: <https://core.trac.wordpress.org/ticket/53512>
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