const response = await page.evaluate(() =>
      fetch('https://somesitehere/sitemap.xml', {
        method: 'GET',
        referrerPolicy: 'strict-origin-when-cross-origin',
      }),
    );

const data = await page.evaluate(async () => {
      const response = await fetch(
        'https://somesite/sitemap.xml',
        {
          method: 'GET',
          referrerPolicy: 'strict-origin-when-cross-origin',
        },
      );
      return response.text();
    });