[wp-trac] [WordPress Trac] #45350: Consider adding a workaround for the "mce_css" filter

[WordPress Trac]

#45350: Consider adding a workaround for the "mce_css" filter
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 Reporter:  azaozz        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  5.0
Component:  TinyMCE       |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 The `mce_css` filter is the "default" way for adding stylesheets inside
 the editor. Can be somewhat problematic for the Classic block as now these
 stylesheets will have to be added to the whole page (as the Classic block
 instance is inline).

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Ticket URL: <https://core.trac.wordpress.org/ticket/45350>
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