[wp-trac] [WordPress Trac] #23176: Inserting media with multiple newlines in caption breaks HTML

[WordPress Trac]

#23176: Inserting media with multiple newlines in caption breaks HTML
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 Reporter:  jonieske         |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Media
  Version:  3.5              |   Severity:  minor
 Keywords:                   |
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 Steps to reproduce:
 1. Open add media dialog in editor to insert image
 2. Select image, enter caption with multiple newlines, eg:
 "one[[BR]]
 two[[BR]]
 three"
 3. Leave alt text field empty
 4. Insert image into post
 5. Save/Update

 As a result, HTML code breaks and image isn't displayed. This happens
 because caption is inserted to alt attribute in case it's empty, and
 newlines break the markup. Toggling between text and visual modes before
 initial post save fixes the code though.

 Proposed fix:
 Remove newlines from content that is automatically inserted to alt
 attribute.

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Ticket URL: <http://core.trac.wordpress.org/ticket/23176>
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