[wp-trac] [WordPress Trac] #52133: TinyMCE editor doesn't load properly when initializing on Visual Tab (Firefox)

[WordPress Trac]

#52133: TinyMCE editor doesn't load properly when initializing on Visual Tab
(Firefox)
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 Reporter:  metalandcoffee                       |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  5.8
Component:  TinyMCE                              |     Version:  5.6
 Severity:  normal                               |  Resolution:
 Keywords:  reporter-feedback has-patch needs-   |     Focuses:
  testing                                        |
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Comment (by azaozz):

 @metalandcoffee, @spikeuk1, @patkemper thanks for testing!

 Yes, I can still reproduce this sometimes when initializing TinyMCE in an
 (old style) metabox in the block editor. Seems the only way around this
 that I can think of at the moment would be to delay initialization of
 TinyMCE in postboxes until the page is fully loaded.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52133#comment:27>
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