[wp-trac] [WordPress Trac] #46197: safecss_filter_attr remove styles with calc()

[WordPress Trac]

#46197: safecss_filter_attr remove styles with calc()
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 Reporter:  displaynone   |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by joyously):

 There are quite a few valid things that would get removed. Gradients and
 filters and `var` can also have parentheses, not to mention data URIs or
 `content` values.

 But what is odd is that the $allowed_attr is filtered, and if empty, no
 other change is made to the $css. Only if it has something is the $css
 further manipulated. This seems backward.

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Ticket URL: <https://core.trac.wordpress.org/ticket/46197#comment:1>
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