Problems executing on a different website.

Hello

I am having a hard time getting this to work with the following website: https://massart.edu/news-category/massart-news

Here is the code for my pagescraper.js

const scraperObject = {
    //url: 'http://books.toscrape.com',
    url: 'https://massart.edu/news-category/massart-news',
    async scraper(browser){
        let page = await browser.newPage();
        console.log(`Navigating to ${this.url}...`);
        await page.goto(this.url, {waitUntil: 'domcontentloaded'});
        // Wait for the required DOM to be rendered
        //await page.waitForSelector('.l_main'); //need to figure .page_inner
        await page.waitForSelector('.layout-region.content-main');        
        // Get the link to all the required books
        //let urls = await page.$$eval('section ol > li', links => {
        	//let urls = await page.$$eval('section main > article >div', links => {
        		let urls = await page.$$eval('article div > h2', links => {
            // Make sure the book to be scraped is in stock 
            links = links.filter(link => link.querySelector('.field__items > i'))
            // Extract the links from the data           
            links = links.map(el => el.querySelector('h2 > a'))
            return links;
        });
        console.log(urls);
    }
}

module.exports = scraperObject;