[wp-trac] [WordPress Trac] #30320: wp_attachment_is_image() return false if extension is Uppercase

[WordPress Trac]

#30320: wp_attachment_is_image() return false if extension is Uppercase
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 Reporter:  netinial      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:  4.0
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Although image is correct.

 wp_attachment_is_image() return false if extension is Uppercase like :
 .JPG

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Ticket URL: <https://core.trac.wordpress.org/ticket/30320>
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