I have a signed applet. All goes well when I serve it from a remote webserver. However, for development, I'm using a server on my laptop (MAMP on OSX). In that case I get
Application Blocked by Security Settings
Your security settings have blocked an untrusted application from running
My security level is "high" and the exception list is empty.
When I upload exactly the same html and jar files to the university server, the applet runs without problem.
Is there something special about localhost?
I'm using Java 7 update 55 on OSX 10.9.2 and Safari.