Drupal behavior that supports opening cookie banner links of the module drupal/cookies inside ajax modals

cookies.js

(function (Drupal, once) {
  Drupal.behaviors.cookies = {
    attach: function (context, settings) {
      once('cookies', 'body', context).forEach(function () {

        // Callback function to execute when the cookies banner is added.
        const callback = (mutationsList) => {
          for (const mutation of mutationsList) {
            if (mutation.type === 'childList') {
              mutation.addedNodes.forEach(node => {
                if (node.nodeType === 1 && node.classList.contains('cookiesjsr-banner')) {
                  // Find all links in the child elements of this node.
                  // They are inside a div with class "cookiesjsr-links".
                  // Add click event listeners to each link.
                  const links = node.querySelector('.cookiesjsr-links').querySelectorAll('a');
                  links.forEach(link => {
                    // Remove the 'target' attribute from each link.
                    link.removeAttribute('target');
                    // Add a click event listener to each link.
                    link.addEventListener('click', function (event) {
                      // Prevent the default action of the link.
                      event.preventDefault();
                      // Open the link in a modal dialog.
                      Drupal.ajax({
                        url: this.getAttribute('href'),
                        dialogType: 'modal',
                        dialog: { width: 800 },
                      }).execute();
                    });
                  });
                }
              });
            }
          }
        };

        // Create a mutation observer instance, observing the body element.
        const observer = new MutationObserver(callback);
        observer.observe(document.body, { childList: true, subtree: true });

      });
    },
  };
})(Drupal, once);

Dependencies:

- core/drupal.dialog.ajax
- core/once