If we do a call to this function(like below) in the landing forms PRE-FORM trigger, it will call WebUtilForm with no errors.
However if we do the same function call from a parent window, that has the applet (or baseHtml file) in an iframe, we get the following error:
"WUC-11:WebUtil must be signed in order to work"
After dismissing the error a number of times, the form eventually opens. Can anyone tell me why this error is being produced?
Exactly which Java Plugin version is used on the client? Also, are you using the WebUtil version that is included with Forms 11 or did you copy it from another version or OTN? You can get the WebUtil version by reviewing the Java Console when any WebUtil enabled form starts.
Given what you have provided, I don't see an obvious issue that would cause what you are describing. However, without a working test case I may be overlooking something. I would recommend you contact Oracle Support and provide them with a simple test case so they can assist you further.
It does seem odd that you are getting a signing error. I suppose it is possible that you may be picking up a cached version of the jar file or there may be an issue with the JRE in use. If you are not able or willing to contact Support, I would recommend you do the following in this order:
1. Close all open browser
2. Clear the JRE cache. This can be done from the Java Control Panel
3. Uninstall ALL installed Java Plugins (JRE)
4. Install any one version other than 7U21
The results will help to partially prove whether or not there is an issue with the JRE.