Java Applets not working via browser with active Cloudflare?
In case you have JavaScript that is trying to load Java Applets on your website and you are receiving 403 error message while you are using the Cloudflare service, access your Cloudflare account settings and disable the following feature:
“Browser Integrity check”
This feature can be turned off under the Firewall app > Web Application Firewall.
Once this feature is disabled, the Java Applets will be properly loading via your JavaScripts and your website will be working correctly.
