apply_filters( ‘wp_redirect_status’, int $status, string $location )

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   Steven Lin 3 years ago

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   Example Migrated from Codex:

   Convert HTTP/1.1-only status codes to 1.0 equivalents when using HTTP/1.0

   add_filter( 'wp_redirect_status', 'http_status_version_downgrade');
   
   function http_status_version_downgrade($status, $location) {
   
       static $HTTP11_to_10 = array(
           203 => 200,
           303 => 302, 307 => 302, /* 305 => No 1.0 equivalent ,*/
       );
   
       if( $_SERVER['SERVER_PROTOCOL'] == 'HTTP/1.0' 
           && isset($HTTP11_to_10[$status]) ) 
       {
           return $HTTP11_to_10[$status];
       }
   
       return $status;
   }