[wp-trac] [WordPress Trac] #54553: Block editor requests to `?_wp-find-template=true` result in a 404 error

[WordPress Trac]

#54553: Block editor requests to `?_wp-find-template=true` result in a 404 error
--------------------------+---------------------
 Reporter:  noisysocks    |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.9
Component:  Editor        |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Description changed by noisysocks:

Old description:

> Originally reported in
> https://github.com/WordPress/gutenberg/issues/36986.
>
> If you create a new post (Posts → Add New) and open the Network tab in
> DevTools you'l see a request made to `?_wp-find-template=true` with a 404
> error.
>
> This causes some unexpected behaviour in the post editor, described in
> the issue above.
>
> I see code which looks like it should handle this query param but the
> function `locate_block_template` doesn't appear to be hooked into
> `wp_loaded` or anything like that.
>
> https://github.com/WordPress/wordpress-
> develop/blob/5fa8d73b1b22ff72f06ae53c07cf2887a4f4b60a/src/wp-includes
> /block-template.php#L61
>
> I suspect something was missed while backporting the block theme
> infrastructure in #54335 cc. @bernhard-reiter.

New description:

 Originally reported in
 https://github.com/WordPress/gutenberg/issues/36986.

 If you create a new post (Posts → Add New) and open the Network tab in
 DevTools you'll see a request made to `?_wp-find-template=true` with a 404
 error.

 This causes some unexpected behaviour in the post editor, described in the
 issue above.

 I see code which looks like it should handle this query param but the
 function `locate_block_template` doesn't appear to be hooked into
 `wp_loaded` or anything like that.

 https://github.com/WordPress/wordpress-
 develop/blob/5fa8d73b1b22ff72f06ae53c07cf2887a4f4b60a/src/wp-includes
 /block-template.php#L61

 I suspect something was missed while backporting the block theme
 infrastructure in #54335 cc. @bernhard-reiter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54553#comment:1>
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