Can't make website exception in Java

I’ve typed in the website exactly, but apparently the game here is loading from somewhere else:

Java’s help site points out that if the game is loading from another address, you have to add that address, but I can’t find what that would be. Any ideas?

Which browser? Your link works for me in Firefox.

I was using Firefox. I had to update Java to use an employment tutorial, & I get this problem. I don’t know if the update was the problem exactly. I have typed the URL in the post above into the exceptions, but after I’m asked to run the Java applet, it won’t run.