[wp-trac] [WordPress Trac] #45067: Add CSS URL sanitization to kses.

[WordPress Trac]

#45067: Add CSS URL sanitization to kses.
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 Reporter:  peterwilsoncc             |       Owner:  (none)
     Type:  enhancement               |      Status:  new
 Priority:  normal                    |   Milestone:  5.0
Component:  Editor                    |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by azaozz):

 In 45067.6.diff:
 - Fixed the shortcodes test, replaced the selector with an invalid one.
 - Added couple of tests for malformed values.
 - Added another conditional to look for malformed values and prevent
 notices.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45067#comment:14>
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