- $provider = add_query_arg( 'maxwidth', $args['width'], $provider );
- $provider = add_query_arg( 'maxheight', $args['height'], $provider );
+ $provider = add_query_arg( 'maxwidth', (int) $args['width'], $provider );
+ $provider = add_query_arg( 'maxheight', (int) $args['height'], $provider );