[wp-trac] [WordPress Trac] #31486: wp_redirect sends incorrect url when it contains non escaped unicode characters

[WordPress Trac]

#31486: wp_redirect sends incorrect url when it contains non escaped unicode
characters
--------------------------+-----------------------------
 Reporter:  louyx         |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  trunk
 Severity:  normal        |   Keywords:
  Focuses:                |
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 '''TL;DR:'''
 When using wp_redirect to a url that contains non-ascii letters, those
 letters are stripped out from the HTTP Location header.

 I have created a small fix for this issue by escaping every non-ascii
 character:
 {{{
 $redirect_url = preg_replace_callback('/([^\x00-\x7F])/i',
 function($matches) {
   return urlencode($matches[1]);
 }, $redirect_url);
 }}}

 '''More Details:'''
 Some plugins redirect to some urls containing unicode characters without
 escaping them first. Escape functions ''esc_url'' and ''esc_url_raw'' do
 not solve this either. I think solving this at core level is the best
 thing to do, especially that it doesn't affect the current behavior of the
 function.

 Here's an example (in Arabic, which is RTL):
 {{{
 wp_redirect( 'http://example.com/tag/تجربة-1/' );
 //redirects to http://example.com/tag/-1/
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/31486>
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