[wp-trac] [WordPress Trac] #54596: Block theme with period in name causes blank editor

[WordPress Trac]

#54596: Block theme with period in name causes blank editor
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 Reporter:  mkaz                                 |       Owner:
                                                 |  hellofromTonya
     Type:  defect (bug)                         |      Status:  accepted
 Priority:  normal                               |   Milestone:  5.9
Component:  REST API                             |     Version:  trunk
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-testing-info has-      |     Focuses:
  unit-tests                                     |
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Comment (by costdev):

 == Test Report

 === Env
 * WordPress 5.9-beta2-52344-src
 * Chrome 96.0.4664.93
 * Windows 10
 * Theme: Twenty Twenty-Two
 * Gutenberg Editor
 * Plugin: None activated.

 === Steps to test
 1. Rename a block theme directory to include `[ ] ( ) - _ (space) @`. For
 example: `[twenty_twenty-two] (@ 1.0)`.
 2. Navigate to `Appearance > Themes` and activate the theme.
 3. Navigate to `Appearance > Site Editor`.
 4. The Site Editor should fail to load.
 5. Apply [https://github.com/WordPress/wordpress-develop/pull/2034 PR
 2034].
 6. Repeat steps 1-3.
 7. The Site Editor should now load.

 Additional testing:
 - Repeat steps 1-7 but place the theme in a sub-directory with `[ ] ( ) -
 _ (space) @` in its directory name.

 === Results
 - Before the PR: The Site Editor fails to load.
 - After the PR: The Site Editor loads as expected.
 - Issue fixed ✅

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Ticket URL: <https://core.trac.wordpress.org/ticket/54596#comment:13>
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