[wp-trac] [WordPress Trac] #27287: siteurl is missing WordPress path when creating a new site

[WordPress Trac]

#27287: siteurl is missing WordPress path when creating a new site
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 Reporter:  danielbachhuber     |      Owner:
     Type:  defect (bug)        |     Status:  new
 Priority:  normal              |  Milestone:  Future Release
Component:  Networks and Sites  |    Version:
 Severity:  normal              |   Keywords:  needs-patch
  Focuses:  multisite           |
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 Our setup is a single subdomain network. WordPress is installed to `/wp`,
 and we don't have rewrites configured to mask the subdirectory.

 On the initial install, `wp_install()` sets the value of `siteurl`based on
 `wp_guess_url()`. The main site ends up with these expected values:

 * `siteurl`: domain.com/wp
 * `home`: domain.com

 On subsequent creation of a new site, `install_blog()` incorrectly sets
 the option values for the new site to:

 * `siteurl`: domain.com
 * `home`: domain.com

 This means the admin loads, but CSS and resources are broken, until I
 update the `siteurl` option value to be "domain.com/wp".

 I'd expect `install_blog()` to follow the same behavior as
 `wp_install_blog()`.

 #23221 is related, although this suggested fix doesn't also fix that.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27287>
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