[wp-trac] [WordPress Trac] #53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox

[WordPress Trac]

#53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox
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 Reporter:  walterebert                |       Owner:  (none)
     Type:  defect (bug)               |      Status:  reopened
 Priority:  normal                     |   Milestone:  Future Release
Component:  Widgets                    |     Version:  5.8
 Severity:  normal                     |  Resolution:
 Keywords:  needs-testing needs-patch  |     Focuses:  javascript
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Comment (by jqz):

 Same error with Customizer in WP 5.5.7 with Firefox.  Triggers (blank)
 grey screen of death in Customizer parent frame.  AFAIAA, Gutenberg
 Widgets were not introduced until WP 5.8...

 Error is at `t.supports[o[r]]` in some apparently inline JavaScript.  WTH
 is inlining minified JS?!?

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Ticket URL: <https://core.trac.wordpress.org/ticket/53529#comment:17>
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