add_query_arg does not use WP_HOME or WP_SITEURL

[lonevvolf]

Plugins which use add_query_arg are producing invalid links when the website is hosted behind a reverse proxy with a different path than the installed application. While the domain name is correct, the path is wrong.

[lonevvolf]

Also, PATH_CURRENT_SITE could be utilized here for perhaps a more straightforward fix.

[peterwilsoncc]

Hi @lonevvolf and welcome to Trac!

Due to the variety of configurations available for sites served behind a reverse proxy, the usual recommendation is for site owners to mess with the $_SERVER values in the wp-config.php file.

In add_query_arg() the default has been to assume the current URL for around 16 years, and determining that without system knowledge behind a reverse proxy is borderline impossible (is / served from /cms/ on the proxy, etc).

I'm going to close this off as wontfix, which is the term used on trac for tickets that won't have action taken on them.

Thansk.