[wp-trac] [WordPress Trac] #62619: Remove `wp_kses_post()` filtering from admin notices

[WordPress Trac]

#62619: Remove `wp_kses_post()` filtering from admin notices
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 Reporter:  azaozz          |       Owner:  (none)
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  6.8
Component:  Administration  |     Version:  6.4
 Severity:  normal          |  Resolution:
 Keywords:  needs-patch     |     Focuses:
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Comment (by azaozz):

 Can see that several bugs resulting from the filtering of the admin
 notices HTML were reported on the original ticket: #57791. Unfortunately
 the fixes for them were added as workarounds/exceptions instead of
 removing the actual cause. There are more reports of broken functionality,
 see #62606.

 Unfortunately I cannot see why and how it was decided to filter the admin
 notices with `wp_kses_post()`, and what is being fixed by that. This
 doesn't seem to have been discussed there?

 In any case I think that any type of filtering of text or HTML that is
 hard-coded and provided directly by WP core or plugins is not a goop idea.
 It doesn't serve any purpose, slows things down, limits use cases, and in
 this case breaks backwards compatibility.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62619#comment:1>
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