http://blogs.msdn.com/jaiprakash/archive/2007/01/22/jscript-exceptions-not-handled-thrown-across-frames-if-thrown-from-a-expando-method.aspxHope all of you are doing great! Today I am going to discuss sort of limitation of Jscript engine which I had hard time debugging. I hope through this post i can save you guys from running into same issue. Scenario - Let’s say Foo() is defined in oneen-USCommunityServer 2.1 SP1 (Build: 61025.2)