Wordpress script with integrity and crossorigin

Question

I'm trying to use the wp_register_script and wp_enqueue_script FUNCTION on WordPress to enqueue a script, which has two attributes: "integrity" and "crossorigin".

Normally I use PHP and my code looks like:

wp_register_script('jquery', 'http' . ($_SERVER['SERVER_PORT'] == 443 ? 's' : '') . '://code.jquery.com/jquery-3.1.1.slim.min.js', false, null);
wp_enqueue_script('jquery');

With any other script. The wp_register_script takes five parameters (in this case four) $handle, $src, $deps, $ver ($media). I'm wondering where I can add the two attributes. I've already tried:

wp_register_script('jquery', 'http' . ($_SERVER['SERVER_PORT'] == 443 ? 's' : '') . '://code.jquery.com/jquery-3.1.1.slim.min.js'.'integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n"', false, null);
    wp_enqueue_script('jquery');

But it didn't work.

Anyone who had the same problem? This is the original script from bootstrap 4, which also has bootstrap and tether with the same attributes (integrity and crossorigin) so, since it is pretty new, any kind of help will be very appreciated.

Answer 1

I just cracked this by accident. I've had to use conditionals on some CSS files for ancient Internet Explorer versions and figured I may as well try putting an array in the same wp_script_add_data function that I used. It works!

    wp_register_script('jquery3', 'https://code.jquery.com/jquery-3.3.1.min.js', array(), '3.3.1', true); // jQuery v3
    wp_enqueue_script('jquery3');
    wp_script_add_data( 'jquery3', array( 'integrity', 'crossorigin' ) , array( 'sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=', 'anonymous' ) );

Reference: https://developer.wordpress.org/reference/functions/wp_script_add_data/#parameters

For completeness: If adding jQuery v3, you also need Migrate v3: http://jquery.com/download/