I have been having trouble all day trying to get Safari to open mybook live. I get the Java error. I have accepted the java app to run. The page opens and I get a share count and either the rest of the page is dark or I get the lava load hang. I have opened the same page in firefox and I was able to open the Share in finder and had full access. this may be a problem with Safari and I have checked and rechecked settings.
Here is the solution that I came up with and I now have access:
Click on Manage Website Settings Button
Scroll To and select Java
Select mybook live
Click on the dropdown next to mybook live and select run in unsafe mode at bottom of list
You may have to reload the page but everything is now accessible for me.
MacBook Pro - Mavericks - Safari