[wp-trac] [WordPress Trac] #29807: add support for picture element and srcset attribute on img in wp_kses

[WordPress Trac]

#29807: add support for picture element and srcset attribute on img in wp_kses
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 Reporter:  mattheu                 |       Owner:
     Type:  enhancement             |      Status:  new
 Priority:  normal                  |   Milestone:  Future Release
Component:  Formatting              |     Version:  trunk
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch dev-feedback  |     Focuses:
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Comment (by rmccue):

 This likely needs URL validation applied to it as well in `wp_kses_hair`.
 This might be complicated, seeing as it's not just a straight up URI
 attribute.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29807#comment:6>
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