[wp-trac] [WordPress Trac] #55288: Site Editor on 5.9.1 fails to find homepage template for FSE themes, on WP subdirectory installation

[WordPress Trac]

#55288: Site Editor on 5.9.1 fails to find homepage template for FSE themes, on WP
subdirectory installation
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 Reporter:  andronocean   |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Editor        |     Version:  5.9.1
 Severity:  critical      |  Resolution:
 Keywords:                |     Focuses:  administration, template
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Comment (by westonruter):

 I'm also seeing this issue. My WP install is in a subdirectory (using the
 [https://github.com/GoogleChromeLabs/wordpressdev/
 GoogleChromeLabs/wordpressdev] environment).

 My home URL is `http://wordpressdev.lndo.site/` but my site URL is
 `https://wordpressdev.lndo.site/core-dev/src/`.

 When I open the Site Editor at `https://wordpressdev.lndo.site/core-
 dev/src/wp-admin/site-editor.php` the console gives an error:

 {{{
 Mixed Content: The page at 'https://wordpressdev.lndo.site/core-dev/src
 /wp-admin/site-editor.php' was loaded over HTTPS, but requested an
 insecure resource 'http://wordpressdev.lndo.site/core-dev/src/?_wp-find-
 template=true'. This request has been blocked; the content must be served
 over HTTPS.
 }}}

 The request using HTTP instead of HTTPS is the problem for me. If I try
 manually going to `https://wordpressdev.lndo.site/core-dev/src/?_wp-find-
 template=true` then the request succeeds. I haven't been able to pinpoint
 where the wrong URL scheme is being supplied.

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Ticket URL: <https://core.trac.wordpress.org/ticket/55288#comment:3>
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