getAllNestedShadowRootsParents.js

function getAllNestedShadowRootsParents(element) {
    const nestedShadowRoots = [];

    function traverseShadowRoot(node) {
        if (node.shadowRoot) {
            nestedShadowRoots.push(node);
            node.shadowRoot.querySelectorAll('*').forEach(child => {
                traverseShadowRoot(child);
            });
        } else {
            Array.from(node.querySelectorAll('*')).forEach(child => traverseShadowRoot(child));
        }
    }

    traverseShadowRoot(element);
    return Array.from(new Set(nestedShadowRoots));
}