[http] Console errors. Failed to load resource: net::ERR_INSECURE_RESPONSE

It was on Chrome for Android in my case. All the static files served from a CDN with a CNAME that's SSL encrypted were not showing up. On Chrome desktop, it all showed fine.

Broken SSL cert

When I properly added the certs in ca_bundle the files displayed correctly.

Chrome for Android takes encryption seriously unlike Desktop. I hope this saves you time and stress