Remove type attribute from script and style tags added by WordPress

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Warning: The type attribute is unnecessary for JavaScript resources.
    From line 10, column 146; to line 10, column 176
    feed/" /> <script type="text/javascript">window
   
 Warning: The type attribute for the style element is not needed and should be omitted.
    From line 11, column 1798; to line 11, column 1820
    </script> <style type="text/css">img.wp
    
Warning: The type attribute for the style element is not needed and should be omitted.
    From line 23, column 193; to line 23, column 251
    a="all" /><style id='kirki-styles-global-inline-css' type="text/css">.envel
    
Warning: The type attribute is unnecessary for JavaScript resources.
    From line 23, column 905; to line 23, column 1010
    }</style> <script async type="text/javascript" src="http://....../wp-content/cache/minify/df983.js"></scri
    
Warning: The type attribute for the style element is not needed and should be omitted.
    From line 70, column 126; to line 70, column 167
    70.png" /><style type="text/css" id="wp-custom-css">@media
    
Warning: The type attribute is unnecessary for JavaScript resources.
    From line 441, column 156; to line 441, column 261
    iv></div> <script defer type="text/javascript" src="http://......./wp-content/cache/minify/26938.js"></scri
    
Warning: The type attribute is unnecessary for JavaScript resources.
    From line 441, column 272; to line 441, column 302
    </script> <script type="text/javascript">/*  */
    
Warning: The type attribute is unnecessary for JavaScript resources.
    From line 443, column 17; to line 443, column 122
    </script> <script defer type="text/javascript" src="http://......../wp-content/cache/minify/6ce07.js"></scri

These errors are some new introduction by W3C and they have started to creep in last 3-4 days only.enter image description here

We enqueue scripts like this →

wp_register_script( 'custom-js', get_template_directory_uri() . '/js/custom.js', array( 'jquery' ), '1.1', true );
    wp_enqueue_script( 'custom-js' );

Can we fix this from the above enqueuing method somehow?

Update →

these are the actual errors. In the red box are coming from W3 total cache.enter image description here

12

WordPress 5.3 introduces a considerably simpler way to achieve this. By registering theme support for HTML 5 for script and style, the type="" attribute will be omitted:

add_action(
    'after_setup_theme',
    function() {
        add_theme_support( 'html5', [ 'script', 'style' ] );
    }
);

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