header( 'HTTP/1.1 500 Internal server error' );
}
if ( $wgShowHostnames ) {
+ header( 'X-MW-Thumbnail-Renderer: ' . wfHostname() );
$url = htmlspecialchars( isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '' );
$hostname = htmlspecialchars( wfHostname() );
$debug = "<!-- $url -->\n<!-- $hostname -->\n";