Cheerio get element outer html

Change your map func to

let htmlPages = pages.map(page => $.html(page));

according to docs

If you don't have easy access to the original $ object, the following also works

function outerHTML (element) {
    var index = element.index();
    var parent = element.parent().clone();
    var child = parent.children()[index];
    parent.empty();
    parent.append(child);
    return parent.html();
}