[wp-trac] [WordPress Trac] #32575: Grid Media Library Not Loading

[WordPress Trac]

#32575: Grid Media Library Not Loading
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 Reporter:  ianstudio     |       Owner:
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:
Component:  Media         |     Version:  4.2.2
 Severity:  normal        |  Resolution:  invalid
 Keywords:                |     Focuses:
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Comment (by SergeyBiryukov):

 Replying to [comment:3 ianstudio]:
 > I just realized  it happens when there is a functions.php file in my
 child-theme folder (I always use child-themes). Odd part is that the
 functions.php is empty, only content it has is: <?php  ?>

 Make sure it does not have a
 [https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8 UTF-8 byte order
 mark] or
 [https://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F
 any whitespace] before `<?php` or after `?>`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32575#comment:5>
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