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r-a-y/wpmu-subdomain-redirects.php Secret

Created March 4, 2024 19:39
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Allow WP MU subdomain redirects
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wpmu-subdomain-redirects.php
<?php
/**
* Allow subdomain redirects.
*
* WordPress has strict redirect rules and for some reason, does not allow
* subdomain redirects even on the same domain.
*/
add_filter( 'allowed_redirect_hosts', function( $retval, $subdomain ) {
if ( false !== strpos( $subdomain, 'sunygeneseoenglish.org' ) ) {
$retval[] = $subdomain;
}
return $retval;
}, 10, 2 );
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