Apache returns uncomplied JSP when error happens

I have a call to a JSP that looks something like this: http://www.somecompany.com/main/jsp/reports/selectDBStuff.jsp

However if the user were to do take the following line and add '%20 to the end, making it look like this: I have a call to a JSP that looks something like this: http://www.somecompany.com/main/jsp/reports/selectDBStuff.jsp%20

 it would then return and show the uncompiled JSP. I need to know how to stop this.

I have tried this on both Apache and Tomcat and also going directly to Tomcat... It appears to only happen when using both apache and Tomcat, so I am assuming this is an Apache issue? Again any help on how to stop this would be appreciated.

Thanks