Unexpected behavior when trying to manually install WordPress on macOS Sierra

Thanks to Jacob P. for pointing me in the right direction.

The fix was simple once I saw that the site was not serving CSS resources. Since my site was indeed using https (and not http), simply changing the following in wp-config.php:

• define(‘WP_HOME’,’http://www.my.server.com‘);
• define(‘WP_SITEURL’,’http://www.my.server.com‘);

To (note the https):

• define(‘WP_HOME’,’https://www.my.server.com’);
• define(‘WP_SITEURL’,’https://www.my.server.com’);

solved the problem for me.