When you run your site on HTTPS instead of HTTP, it causes a mixed content error because clean.php is referencing http://fonts.googleapis.com instead of https://fonts.googleapis.com.
This should be updated, as it would cater for both HTTP and HTTPS sites.
Current code is:
wp_register_style('google-font', 'http://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700|Lora:400,700|Droid+Sans+Mono');
Should be changed to
wp_register_style('google-font', 'https://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700|Lora:400,700|Droid+Sans+Mono');
When you run your site on HTTPS instead of HTTP, it causes a mixed content error because clean.php is referencing http://fonts.googleapis.com instead of https://fonts.googleapis.com.
This should be updated, as it would cater for both HTTP and HTTPS sites.
Current code is:
wp_register_style('google-font', 'http://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700|Lora:400,700|Droid+Sans+Mono');Should be changed to
wp_register_style('google-font', 'https://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700|Lora:400,700|Droid+Sans+Mono');