Google's mobile-friendly test on my new site says it is mobile friendly, but there were "Page load issues." It returned:
Page partially loaded Not all page resources could be loaded. This can affect how Google sees and understands your page. Fix availability problems for any resources that can affect how Google understands your page.
Then it lists 36 resources that apparently didn't load, things like: http://www.googlecommerce.com/trustedstores/api/js - Script - Other error http://www.example.com/js/lightboxes/fancybox/blank.gif - Image -Other error http://www.example.com/js/lightboxes/fancybox/fancybox.png - Image - Other error http://www.example.com/skin/frontend/my_theme/default/fonts/cutive-regular-webfont.ttf - Font - Other error