[wp-trac] [WordPress Trac] #54507: Site Editor does not load when using "almost pretty" permalinks

[WordPress Trac]

#54507: Site Editor does not load when using "almost pretty" permalinks
--------------------------+-----------------------------
 Reporter:  noisysocks    |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  REST API      |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 The Site Editor does not load if the site's permalink structure is set to
 [https://wordpress.org/support/article/using-permalinks/#pathinfo-almost-
 pretty the "almost pretty" structure]. This is the default permalink
 structure [https://github.com/WordPress/wordpress-
 develop/blob/d6f3d408d8e8e61221de7d7832360f203c4b4d06/src/wp-
 admin/includes/upgrade.php#L500 when WordPress is installed on a server
 that does not support URL rewriting.]

 Steps to reproduce:

 1. Go to ''WP Admin → Settings → Permalinks''.
 2. Select ''Custom Structure'' and enter
 `/index.php/%year%/%monthnum%/%day%/%postname%/` into the text field.
 3. Go to ''WP Admin → Appearance → Editor''.
 4. You'll see a WSOD.

 ----

 The WSOD occurs because the Site Editor tries to access a property on a
 null template object.

 The template object is null because the request made to
 `/wp/v2/templates/twentytwentytwo//home` results in a 404 error.

 You can confirm this locally:


 {{{
 $ http -a admin:password GET http://wp-git-build.test/index.php/wp-
 json/wp/v2/templates/twentytwentytwo//home context==edit

 HTTP/1.1 404 Not Found


 {
     "code": "rest_template_not_found",
     "data": {
         "status": 404
     },
     "message": "No templates exist with that id."
 }
 }}}

 The request results in a 404 error because the REST API endpoint is
 looking for a template named `twentytwentytwo/home`, not
 `twentytwentytwo//home`. (Note the number of slashes.)

 This is because, when the "almost pretty" permalink structure, WordPress
 will use `$_SERVER['PATH_INFO']` as the route. `PATH_INFO` will collapse
 double slashes.

 You can confirm this by adding a `var_dump()` to `wp-settings.php`:

 {{{
 var_dump( $_SERVER['PATH_INFO'] ); // string(45) "/wp-
 json/wp/v2/templates/twentytwentytwo/home"
 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/54507>
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