[wp-trac] [WordPress Trac] #14376: admin post.php fails html validation due to use of "[" in name/id/for of hidden custom fields

[WordPress Trac]

#14376: admin post.php fails html validation due to use of  "[" in name/id/for of
hidden custom fields
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 Reporter:  anmari            |       Owner:
     Type:  defect (bug)      |      Status:  new
 Priority:  lowest            |   Milestone:  3.9
Component:  Posts, Post       |     Version:  3.0
  Types                       |  Resolution:
 Severity:  normal            |     Focuses:  accessibility, administration
 Keywords:  has-patch         |
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Comment (by nacin):

 Is this actually still a problem? In HTML5, [ and ] are allowed in IDs.
 The only real issue is #metakeyselect.

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Ticket URL: <https://core.trac.wordpress.org/ticket/14376#comment:8>
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