FULL PRODUCT VERSION :
jdk1.7.9_07

ADDITIONAL OS VERSION INFORMATION :
Windows 8
Windows 7

EXTRA RELEVANT SYSTEM CONFIGURATION :
Tried in IE 10, IE 9, Firefox and Chrome

A DESCRIPTION OF THE PROBLEM :
When browsing to my website at http://www.interactivepianolessons.com/, it will work fine the first time. If I close my browser and re-open, I will get an 'Error. Click for details. Application Error - SecurityException - illegal URL redirect. This will continue showing up until I go into control panel - Java - Temporary Internet File Settings - Delete Files - and delete the 'Cached Applications and Applets'

This does not happen when I open the website locally from my desktop files, just when it is online. Tried multiple browsers. Did not use to happen in previous versions. Not sure what version was the last one working so the below 'Regression' question is a guess.

REGRESSION. Last worked in version 6u31

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
-Browse to my website at http://www.interactivepianolessons.com
-Note the applet loads properly.
Close browser and browse to site again
-Note applet does not load now

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expect the applet to load correctly everytime

ERROR MESSAGES/STACK TRACES THAT OCCUR :
illegal URL redirect

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
control panel - Java - Temporary Internet File Settings - Delete Files - and delete the 'Cached Applications and Applets' every time you close your browser