[wp-trac] [WordPress Trac] #58222: Upper case breaks WP home/url and no warning is given.

[WordPress Trac]

#58222: Upper case breaks WP home/url and no warning is given.
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 Reporter:  programmin          |      Owner:  (none)
     Type:  defect (bug)        |     Status:  new
 Priority:  normal              |  Milestone:  Awaiting Review
Component:  General             |    Version:  5.7.2
 Severity:  major               |   Keywords:
  Focuses:  ui, administration  |
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 Browsers (at least Safari, Firefox, Chrome) will request
 mysite.example.com when you enter mySite.example.com. Any upper case gets
 set to lower.

 If you have a home url set like mySite.example.com for example your home
 page will be completely inaccessible with 301 redirect to itself as
 browsers turn the upper case to lower case. It seems like that should be
 lower-cased for subdomains.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58222>
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