[wp-trac] [WordPress Trac] #23307: shortcode_parse_atts may return empty string

[WordPress Trac]

#23307: shortcode_parse_atts may return empty string
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 Reporter:  GaryJ         |       Owner:  miqrogroove
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  4.4
Component:  Shortcodes    |     Version:
 Severity:  minor         |  Resolution:
 Keywords:  needs-patch   |     Focuses:  docs
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Comment (by aaroncampbell):

 Replying to [comment:21 miqrogroove]:
 > Currently researching the history of attribute name syntax.  I had
 documented this as being restricted to "word" characters, but it looks
 like that changed to include hyphens at some point.
 Yeah, that happened just a couple months ago in [33118] (ticket #9405). It
 brought them more in line with shortcode names (#17657) and made them feel
 a bit more like the HTML attributes that people are used to (data-
 something, aria-something, etc).

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Ticket URL: <https://core.trac.wordpress.org/ticket/23307#comment:22>
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