7.6 Java version detection
Java version detection across all platforms and web browsers cannot
be done accurately with JavaScript alone. For example Java may be
installed but is it enabled in their web browser settings?
CopySafe Web includes a Java version applet to test that java is in
fact active and retrieve an accurate version number. If their java
version is less than 1.4 they are redirected to java.com to download
an upgrade.
The position of the Java version applet is most critical and should
be the first thing that loads between the BODY tags. The trigger for
detection is the onLoad statement within the body tag.
Java version errors
The redirect script works by reacting to an error in getting a response
from the version applet. Subsequently any JavaScript error on your
web page will trigger a redirection to java.com
If you are getting errors you can disable the Java version check by
removing onload="showJVMDetails();" from the opening body tag.
Debugging JavaScript errors
Test your web pages online using a Firefox web browser with the Error
Console window open. You can open the Error Console by going to Tools
in the Firefox menu and selecting Error Console.
The Error Console will tell you exactly on which line the error occurs
and also give a hint as to what the error is. |
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