When I open the CloudBees Jenkins health adviser configuration page, the web console (developer tools) reports:

Refused to apply style from 'https://home.markwaite.net/cloudbees-core-cm/static/df27d5eb/css/font-awesome/css/font-awesome.min.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

I did not detect any user visible issue with the page, only that surprise in the developer tools console when it is open.

Refer to the picture for more details