After finishing the tutorial, I tried changing the URL in frontity.settings to my wordpress site. Using a URL for a vanilla wp site works: https://drumcph.wordpress.com. But when I use a URL for a wp site hosted in wpengine, https://drumcphdkprd.wpengine.com, I get an error.
The browser displays: invalid json response body at Daniel Reznick Site – Your SUPER-powered WP Engine Site reason: Unexpected token < in JSON at position 0
What is the correct way to use Frontity with wpengine?