[wp-trac] [WordPress Trac] #44690: Username should not accept space

[WordPress Trac]

#44690: Username should not accept space
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 Reporter:  subrataemfluence  |      Owner:  (none)
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Users             |    Version:  trunk
 Severity:  normal            |   Keywords:  2nd-opinion
  Focuses:                    |
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 The `username` field accepts `space`, not leading or trailing ones though.
 Space is usually not in the list of accepted characters.

 I am not sure if it is there in purpose. Ideally it should not accept this
 character.

 `Username` also accepts `@`, which is not an issue. But the problem starts
 when the username looks like an email address! When sending verification
 requests for Export and Erase private data the issue can be noticed.

 However, if `username` has to accept `@`, WordPress should first check
 whether it is validating email address pattern. If it does, I think that
 should be reported rather than allowing it to get saved.

 I explained the above issue in #44683.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44690>
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