Fixing iPIX Java Applet Security Errors

Security Errors When Loading Java Applets

Did you get errors like the following when you tried to run a Java applet in the web browser?

- Your Java version is out-of-date.
- Application Blocked
- Application Blocked by Security Settings
- Your security settings have blocked an application from running with an out-of-date or expired version of Java.
- Your security settings have blocked an untrusted application from running.

For security reasons, recent versions of Java may block unsigned Java applets from automatically running by default.

Solution #1

If you are allowed to install/upgrade software on your computer, please install the latest Java upgrade first, relaunch the web browser, and try again.

Solution #2

If you are unable to install/upgrade to the latest Java version, and/or the upgrade did not fix the problem, and you trust the unsigned Java applet to be safe, you can workaround this problem by adding an "exception site" or temporarily lowering the security level of the currently installed Java:

For Microsoft Windows:

1. Click on the Windows START menu in the lower-left corner of the screen --> Control Panal --> Programs --> Java --> Configure Java.
2. In the Java Control Panel window that appears --> Click the Security tab.
3. If there is a Exception Site List section in this window, click on the Edit Site List... button --> Click the Add button --> Type in the web server location for the Java applet. In this case, it would be http://www.lsu.edu/ --> Click the OK button --> Click the OK button.
4. If there is no Exception Site List section in this window --> Slide the Security Level indicator from High down to Medium --> Click the Apply button --> Click the OK button.
5. Close ALL of the open windows. You must completely QUIT the web browser or this workaround will fail.
6. Re-launch the web browser.
7. Go to the page with the Java applet.
8. When the Security Warning window asking "Do you want to run this application?" appears, if there is an "I accept the risk and want to run this app." option, check-mark the ON box first, then --> Click the Run button.
9. The Java applet should load OK now. You may need to click on it to start it.
10. When you are done using the Java applet, you should change the Java Security Level back to High if you had lowered it down to Medium earlier.

For Mac OS X:

1. Click on the Apple menu in the upper-left corner of the screen -->System Preferences..." --> Java.
2. In the Java Control Panel window that appears --> Click the Security tab.
3. If there is a Exception Site List section in this window, click on the Edit Site List... button --> Click the "Add" button --> Type in the web server location for the Java applet like "http://www.math.ucsd.edu/" --> Click the "OK" button --> Click the "OK" button.
4. If there is no Exception Site List section in this window --> Slide the Security Level indicator from High down to Medium --> Click the Apply button --> Click the OK button.
5. Close ALL of the open windows. You must completely QUIT the web browser or this workaround will fail.
6. Re-launch the web browser.
7. Go to the page with the Java applet.
8. When the Security Warning window asking "Do you want to run this application?" appears, if there is an "I accept the risk and want to run this app." option, check-mark the ON box first, then --> Click the Run button.
9. The Java applet should load OK now. You may need to click on it to start it.
10. When you are done using the Java applet, you should change the Java Security Level back to High if you had lowered it down to Medium earlier.

References

• Java.com: How do I control when an untrusted applet or application runs in my web browser?
• Java.com: Why are Java applications blocked by your security settings with the latest Java?
• Java.com: What should I do when I see a security prompt from Java?

Source

This information was borrowed, and adapted, from the University of San Diego Department of Mathmatics: Intro to Cryptography (Math 187) website; the link is for "Applets". Many thanks to them for it's use. msb