wp-includes/class-wp-http-cookie.php:181Confirms that it's OK to send this cookie to the URL checked against.
$urlstringbool public function test( $url ) { if ( is_null( $this->name ) ) { return false; } // Expires - if expired then nothing else matters. if ( isset( $this->expires ) && time() > $this->expires ) { return false; } // Get details on the URL we're thinking about sending to. $url = parse_url( $url ); $url['port'] = isset( $url['port'] ) ? $url['port'] : ( 'https' === $url['scheme'] ? 443 : 80 ); $url['path'] = isset( $url['path'] ) ? $url['path'] : '/'; // Values to use for comparison against the URL. $path = isset( $this->path ) ? $this->path : '/'; $port = isset( $this->port ) ? $this->port : null; $domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] ); if ( false === stripos( $domain, '.' ) ) { $domain .= '.local'; } // Host - very basic check that the request URL ends with the domain restriction (minus leading dot). $domain = ( str_starts_with( $domain, '.' ) ) ? substr( $domain, 1 ) : $domain; if ( ! str_ends_with( $url['host'], $domain ) ) { return false; } // Port - supports "port-lists" in the format: "80,8000,8080". if ( ! empty( $port ) && ! in_array( $url['port'], array_map( 'intval', explode( ',', $port ) ), true ) ) { return false; } // Path - request path must start with path restriction. if ( ! str_starts_with( $url['path'], $path ) ) { return false; } return true; }Introduced in 2.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-http-cookie.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.