search dom for shadow roots

findShadows.js

(() => {
	function walkDom(node, func) {
		var children = node.childNodes;
		for (var i = 0; i < children.length; i++) {
			walkDom(children[i], func);
		}
		func(node);
	}
	walkDom(document.body, (node) => {
		if (node.shadowRoot) {
			console.log(node, node.shadowRoot);
		}
	});
})();