[wp-trac] [WordPress Trac] #57329: Cannot save new custom template when name contains none-Latin characters

[WordPress Trac]

#57329: Cannot save new custom template when name contains none-Latin characters
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 Reporter:  mburridge                            |      Owner:  (none)
     Type:  defect (bug)                         |     Status:  new
 Priority:  normal                               |  Milestone:  Awaiting
                                                 |  Review
Component:  REST API                             |    Version:  6.1.1
 Severity:  normal                               |   Keywords:
  Focuses:  javascript, administration, rest-    |
  api                                            |
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 When you try to save a new custom template where the template name
 contains one or more
 [https://en.wikipedia.org/wiki/List_of_Unicode_characters#Phonetic_scripts
 non-latin characters] you get an error. The error appears to be related to
 the REST endpoint.

 See [https://github.com/WordPress/gutenberg/issues/41214 GitHub issue
 #41214].

 Too reproduce:

 1. Select: Appearance -> Editor in the WP Admin
 2. Click the WordPress logo in top left, and select Templates
 3. Click Add New button (top right)
 4. Select Custom template and give it a name with at least one non-latin
 character
 5. Save the new template
 6. Confirm that you see the error in the editor and in the console.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57329>
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