[wp-trac] [WordPress Trac] #48996: Add lang attribute to the content in the backend

[WordPress Trac]

#48996: Add lang attribute to the content in the backend
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 Reporter:  Chouby         |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  I18N           |    Version:  4.7
 Severity:  normal         |   Keywords:
  Focuses:  accessibility  |
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 Since WordPress 4.7, it is possible for a user to display the backend in a
 language different than the current site's language. In this case, the
 html 'lang' attribute is set to the user's language. I am not an
 accessibility expert but I expect that this causes an issue for screen
 readers as the site's content will be read with a wrong language.

 Also I am not sure if this is an issue to often switch the language of a
 screen reader.

 Anyway, I propose to add a 'lang' attribute to all the html tags
 displaying content. This 'lang' attribute must be filterable for
 multilingual plugins being able to select the correct language for each
 content.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48996>
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