[wp-trac] [WordPress Trac] #61547: The theme editor does not work

[WordPress Trac]

#61547: The theme editor does not work
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 Reporter:  ntavares                           |      Owner:  (none)
     Type:  defect (bug)                       |     Status:  new
 Priority:  normal                             |  Milestone:  Awaiting
                                               |  Review
Component:  Administration                     |    Version:  6.5.5
 Severity:  normal                             |   Keywords:
  Focuses:  administration, php-compatibility  |
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 After the latest WP Core update, the theme editor is not working, if I try
 to edit any file it shows the following error: “Sorry, that file cannot be
 edited.”
 We do comment “**$file = wp_normalize_path( $file );**” in the **wp-
 includes/functions.php** file and it works again with the same
 configuration (active plugins, active theme, etc.).
 After calling the **wp_normalize_path** function, the $file no longer
 exists in $allowed_files. This **in_array( $file, $allowed_files, true )
 return false**. I think it is due to the absolute path in windows with
 backslashes.

 It will probably only happen on a Windows server.

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Ticket URL: <https://core.trac.wordpress.org/ticket/61547>
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