I'm seen this question, and I want know if this solution will work only on Java settings in my computer or this will work in all computers with Java installed? Because I want that my applet (.jar) works in all computers with Java installed, and with security settings default (High) that already comes when Java installed see.
Someone could give me a tip?
Thank in advance!
As the answer given into the post you have mentioned which is
Just Go To Startmenu >>Java >>Configure Java >> Security >> Edit site list >> copy and paste your Link with problem >> OK Problem fixed :)
This you have to do in each and every computer in which you want to run your applets , untill you are using self signed applets.
Alternative Solution : Just Use Signed Applets
Update
To understand the diffrence between Unsigned , Self-Signed and Signed Applets i suggest you to read this Java Applets: Unsigned vs Self-Signed vs Signed
In the java Update java7u51 Adding sites in exception list has been changed slightly , you may also look this post for that Upcoming Exception Site List in 7u51