[wp-trac] [WordPress Trac] #21931: White screen of death if theme can't be found

[WordPress Trac]

#21931: White screen of death if theme can't be found
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 Reporter:  ericlewis               |       Owner:
     Type:  enhancement             |      Status:  reopened
 Priority:  normal                  |   Milestone:  4.5
Component:  Themes                  |     Version:
 Severity:  normal                  |  Resolution:
 Keywords:  dev-feedback has-patch  |     Focuses:
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Changes (by ericlewis):

 * keywords:  2nd-opinion dev-feedback ux-error-recovery => dev-feedback
     has-patch
 * milestone:  Future Release => 4.5


Comment:

 I think we should do something along the lines of @SergeyBiryukov's
 suggestion, see attachment:21931.3.diff. which outputs the message `The
 theme directory "{{ theme_directory_name }}" does not exist.`

 What's wrong with a site visitor seeing this message? Visitors can see the
 `Error establishing a database connection` message, this seems in the same
 vein. A WP site needs a DB connection, a WP site needs a theme. Fail
 early, fail explicitly.

 @nacin, @SergeyBiryukov — thoughts?

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Ticket URL: <https://core.trac.wordpress.org/ticket/21931#comment:25>
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