remove-type-attribute-pre-5-3-with-replace.php

<?php
function optimize_style_tags( $html , $handle , $href , $media ) {
  
    return str_replace( "type='text/css'" , "" , $html );
    
}

add_filter('style_loader_tag', 'optimize_style_tags', 10, 4);


function optimize_script_tags( $tag , $handle , $src ) {

    return str_replace( "type='text/javascript'" , "" , $html );
    
}

add_filter('script_loader_tag', 'optimize_script_tags', 10, 3);
?>