[wp-trac] [WordPress Trac] #29932: There is no error reporting in the cistomizer

[WordPress Trac]

#29932: There is no error reporting in the cistomizer
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 Reporter:  Fab1en          |      Owner:
     Type:  enhancement     |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Customize       |    Version:  trunk
 Severity:  normal          |   Keywords:
  Focuses:  administration  |
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 As far as I know, there is no way to display an error to the user when
 he/she is using the theme customizer.

 An error that I'm facing some time to time when I test WordPress locally
 is when `wp-content/uploads` is not writable. Then, uploading a new image
 to use as a background in the customizer does not work, but this fails
 silently.

 This error reporting should be built-in inside `WP_Customize_Control`
 class so that any control that extends this class can throws a custom
 error and displays it to the user.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29932>
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